The activities below are offered by a variety of organizations and their dedicated volunteers. All programs are FREE unless noted below. Programs led by IRC-Certified Volunteers require pre-registration, which closes at 4 p.m. on the day prior to the event. No walk-up registrations will be permitted for these events. For policies of other organizations, please use the sign-up information provided. For mobility device policies click here.
| Note: Minors must be accompanied by a parent or guardian for these events. For programs requiring online registration, each adult and child must be registered. |
Need help? For the fastest answers, look for organization-specific contact information in each event listing (click More Information for full listing). If no contact information is listed, email info@irconservancy.org for assistance.
Click here to learn more about IRC-Certified Volunteers. • Click here to learn more about the Difficulty Ratings.
Monday, April 3, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 04/03/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- 5 of 25
Monday, April 10, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 04/10/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/02/2023
Wednesday, April 12, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 04/12/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/04/2023
Monday, April 17, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 04/17/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/09/2023
Wednesday, April 19, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 04/19/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/11/2023
Monday, April 24, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 04/24/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/16/2023
Wednesday, April 26, 2023
After Work Fitness Hike: Limestone Ridge, Dripping Springs & Sandtrap
Join us for a strenuous, extremely challenging, fast-paced, afternoon fitness hike starting in Limestone Canyon. Along the way we’ll be rewarded with panoramic views of Orange County and possible wildlife sightings. This is a 7.5 mile cardio hike, completed in 2.5 hours and includes a 1000+ foot elevation change. This hike is for experienced, physically fit hikers who enjoy the challenge of multiple steep climbs and descents. There are no rest stops on this approximately 7.5 mile cardio hike, and the average 3-3.5 mile per hour fast pace can be extremely difficult over steep terrain in the wilderness setting.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
- Date:
- Wed, 04/26/2023
- Time:
- 5:30 PM - 8:00 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 4
- Distance:
- 8 miles
- Minimum Age:
- 18
- Spaces Left:
- Registration for this event opens at 8:00am on 04/18/2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 04/26/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/18/2023
Monday, May 1, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 05/01/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/23/2023
Wednesday, May 3, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 05/03/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/25/2023
Monday, May 8, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 05/08/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 04/30/2023
Wednesday, May 10, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 05/10/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/02/2023
Monday, May 15, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 05/15/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/07/2023
Wednesday, May 17, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 05/17/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/09/2023
Monday, May 22, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 05/22/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/14/2023
Wednesday, May 24, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 05/24/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/16/2023
Monday, May 29, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 05/29/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/21/2023
Wednesday, May 31, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 05/31/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/23/2023
Monday, June 5, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Monday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Mon, 06/05/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/28/2023
Wednesday, June 7, 2023
After Work Fitness Hike on Paved Hicks Haul Road
Join us every Wednesday night in OCParks’ Irvine Ranch Open Space for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at an average of 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.
- Date:
- Wed, 06/07/2023
- Time:
- 6:00 PM - 7:30 PM
- Where:
- Limestone Canyon Nature Preserve
- Difficulty Rating:
- 3
- Distance:
- 3.5 miles
- Minimum Age:
- 16
- Spaces Left:
- Registration for this event opens at 8:00am on 05/30/2023
