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.
Updated Difficulty Ratings: The Hiking and Fitness Difficulty Ratings have been updated to reflect our current activities. Please click below to read the ratings.
Click here to learn more about IRC-Certified Volunteers. • Click here to learn more about the Difficulty Ratings.
Search & Filter Activities
Friday, March 28, 2025
Early Morning Hike: Gypsum Canyon Wilderness

Come explore beautiful Gypsum Canyon Wilderness, the northernmost portion of OC Parks’ Irvine Ranch Open Space. This scenic hike involves steep climbs and descents on several single-track trails and is done at an average moving pace of 3 miles per hour. The rewards are many: panoramic views of Fremont and Weir Canyon Nature Preserves and beyond, possible wildlife sightings, interesting rock formations, and beautiful wildflowers in season.
CANCELLED: Fourth Friday Habitat Restoration in Buck Gully

Birds and other wildlife need healthy habitat to thrive. Simple things like planting native plants or removing non-native plants can greatly improve habitat for wildlife. You can be part of that positive impact while enjoying the beauty of Buck Gully near Newport Beach. Come help us with a variety of activities ranging from seed collection to weeding invasive plants.
This activity takes place on sloped terrain and sturdy hiking boots are highly recommended. All training, tools, and gloves will be provided to ensure your safety and comfort. Rattlesnakes are occasionally seen here and generally avoid people, but protective gear will be provided.
Growing Together at the Native Seed Farm

Looking for a way to give back to Nature this Spring? Come help us behind the scenes at the Irvine Ranch Conservancy’s one-of-a-kind Native Seed Farm in Irvine! Every day at the farm is different; depending on the needs of the farm we will be harvesting seeds from beautiful native plants, planting new seeds in the annual plots, working in our native plant demo garden, or tending to younger seedlings in our nursery.
Working with us at the Native Seed Farm is a great way to grow your community and cultivate knowledge about local plant and wildlife! Absolutely no experience or special equipment required!
Spring Morning Fitness Hike with Yoga at Quail Hill

Celebrate Spring with a five mile out and back moderate fitness hike (averaging about 3 mph) before experiencing yoga outdoors at the Community Center. The hike is highlighted with a short but steep climb which provides great views of the Quail Hill neighborhood and beyond. The yoga is suitable for those with little or no experience, focused on hips, legs and core. Our focus on breath calms the nervous system and has positive effects on mental, emotional and physical health. If you have never done a yoga hike before you will be surprised how connected you feel to nature. Please bring water, your own yoga mat plus a large beach towel, and wear shoes appropriate for hiking on trails.
Invasive Removal: Orchard Hills

Remove tree tobacco and other invasive plants identified on recent survey
Survey and remove Sahara Mustard
Route: Orchard Hills Loop
Coordinated with IRC Staff Isaac Ostmann
Baker Canyon Equestrian Ride in Black Star Wilderness Area

Take a leisurely equestrian ride through beautiful Baker Canyon in the Black Star Wilderness Area, home of oak woodlands, grasslands, and coastal sage scrub. View evidence of the old ranch days when cattle once roamed the area and see some of the wildflowers that are native to our area. You will gain amazing views of the local canyons and Irvine Lake.
Baker Meadow Group Stewardship

Spend your morning planting Coast Live Oak seedlings and acorns within a beautiful oak woodland in Baker Canyon. No experience necessary.
Wild Tales

Spending time outside is one of the best ways to nurture curiosity and instill a love of the natural world. Bring your young ones and join OC Parks staff to learn all about the Newport Back Bay.
Our Wild Tales program is offered every Friday from 10:00-11:00am and includes a story time, an age-appropriate hike, and a themed craft. Each week will focus on a different topic that encourages young ones to learn about the outdoors.
The program begins at the Peter and Mary Muth Interpretive Center. Program content is tailored for the preschool level (ages 2-5), but all are welcome to attend. Minors under age 18 must be accompanied by an adult guardian. Please wear comfortable attire and closed-toe shoes.
Advance registration is recommended. Program and parking are free.
Adverse weather conditions may move the program indoors or cancel it.
Jr. Ranger Adventure: Santiago Oaks Regional Park

The OC Parks Jr. Ranger Program encourages park guests to find their own paths within OC Parks by developing a sense of belonging, becoming a part of nature and feeling empowered to be stewards of Orange County’s natural and cultural resources.
Join OC Parks staff and volunteers to earn a unique Jr. Ranger badge for Santiago Oaks Regional Park.
Explore the natural wonders of Santiago Oaks Regional Park as we search for all the colors of the rainbow along the trails! This program will begin outside the nature center.
This program is designed for ages 7-12, but all are welcome.
Minors must be accompanied by a parent or guardian during the program. Sunscreen, sturdy footwear, and water are recommended. Strollers are not recommended.
The program is free and parking is $3 on weekdays. Inclement weather will cancel the program.
Advance registration is required.
For questions, please contact Shelly Marshall at shelly.marshall@ocparks.com.
Bommer Canyon East Fork and Ridge Route Loop Hike

Experience the serenity of Bommer Canyon during this moderate-paced hike in the Irvine Open Space Preserve. We’ll experience mature coastal sage scrub and fantastic views overlooking the city of Irvine and the hillsides to the north. This hike is just over 3 miles and includes 700 feet of total climbing elevation with several very steep inclines. The steepest section ascends 300 feet in a quarter-mile. Participants must be in good physical condition and should be able to hike steep hills.
Night Hike

We love the nightlife! Join OC Parks staff at Irvine Regional Park as we set out to search for the nighttime critters that call this park home. From humble toads to graceful owls, you never know what you’ll see!
This program will begin in front of the Irvine Regional Park Nature Center near parking lot T. Dressing in layers, wearing sturdy footwear and bringing water are recommended. Red-tinted flashlights are highly encouraged. This hike is not recommended for very small children or strollers. Children must be accompanied by a guardian during the program.
The program is free and parking is $5 per vehicle.
Registration is required for this program.
For questions, please contact resource specialist Shelly Marshall at shelly.marshall@ocparks.com.
Saturday, March 29, 2025
Birding Walk at Mile Square

Mile Square Regional Park has some of the highest bird diversity in Orange County and this gentle paced walk led by highly trained OC Parks Volunteers will help bird watchers of all experience levels discover what the park has to offer. All are welcome and loaner binoculars will be available.
Water, closed toe shoes and sun protection are recommended. This approximately 2 mile walk will begin in Parking Lot H.
Minors aged 16 and younger must have a legal guardian present at all times.
Space is limited and advance registration is Required.
The event is free, but parking is $5.
Rain will cancel the event.
Growing Together at the Native Seed Farm

Looking for a way to give back to Nature this Spring? Come help us behind the scenes at the Irvine Ranch Conservancy’s one-of-a-kind Native Seed Farm in Irvine! Every day at the farm is different; depending on the needs of the farm we will be harvesting seeds from beautiful native plants, planting new seeds in the annual plots, working in our native plant demo garden, or tending to younger seedlings in our nursery.
Working with us at the Native Seed Farm is a great way to grow your community and cultivate knowledge about local plant and wildlife! Absolutely no experience or special equipment required!
Hiking Through History

Celebrate 50 years of recreation at Santiago Oaks Regional Park by hiking through its history! Learn about the Windes family that called this park home, the flood of 1969 and the grassroots effort to preserve Barham Ranch as parkland. Stops will include the Historic and Villa Park dams, iconic orange grove, nature center and more.
The walk will begin in front of the nature center located near the park entrance and will be approximately 2 miles with little elevation gain.
Walk-ins are welcome, but registration is recommended.
Children must be accompanied by a parent or guardian during the program and strollers are not recommended. Sun protection, sturdy footwear and plenty of water are strongly encouraged.
The program is free and parking is $5 per vehicle.
Inclement weather may cancel the program.
For questions, please contact resource specialist Shelly Marshall at (714) 973-6625 or shelly.marshall@ocparks.com.
Nature Scavenger Hunt at the Upper Newport Bay

Get ready for a FUN, all ages, Nature Scavenger Hunt, put on by OC Parks staff and volunteers.
The day will consist of locating a series of interpretive tables and posts that have been “hidden” along the trails around the Peter and Mary Muth Interpretive Center. We will have hands-on, educational activities and prizes for those that complete the scavenger hunt.
The program is designed for ages 7-12, but all are encouraged to participate. Kick off is 9:30am, and the event concludes at 12:30pm. You may arrive at any point during this time window. The scavenger hunt itself takes roughly 45 minutes to complete.
The program and parking are free. Adverse weather will cancel the event.
Advance registration is recommended, but walk-ups are welcome.
Family Hike: Round Canyon

Enjoy nature with friends and family in Round Canyon. We hike along a fairly flat trail as we watch for red-tailed hawks and mule deer. This activity originates in the City of Irvine and travels into OC Parks’ Irvine Ranch Open Space. The hike averages 2-3 miles round trip at an easy pace with a medium level of interpretation. This program is for participants who would like a slower-paced and level hike. Wear comfortable clothes and sturdy shoes and bring water for the hike.
Starry, Starry Night

Come join us for an interactive evening under the stars. Immerse yourself in a scaled-down version of our solar system. Test your imagination in naming the constellations. Reenact the struggle between Orion and the Scorpion. The hike will average 2-3 miles round trip at an easy pace with a high level of interpretation. This program is for participants who would like a slower-paced hike. Wear comfortable clothes and sturdy shoes and bring water for the hike. This activity is designed with kids ages 5 – 12 in mind but, everyone is welcome.
Sunday, March 30, 2025
Early Morning Hike: Fremont Canyon

Come enjoy an early morning hike in Fremont Canyon Nature Preserve, part of OC Parks’ Irvine Ranch Open Space. Our hike climbs steeply from the mouth of Fremont Canyon, past an abandoned coal mine up to the Fremont Weather Station where winds have been clocked at up to 100 mph. After enjoying the view, we’ll hike back the same way to our starting point. This hike involves steep hills and a 1200’ elevation change but the rewards are panoramic views of Orange County, the Santa Ana Mountains and surrounding areas as well as possible wildlife sightings. Please arrive 15 minutes early; the entrance gate will be shut and locked 5 minutes before start of the activity. Be sure to come prepared with a sturdy day pack, water, snacks, closed-toe hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail.
Sunday Fitness Hike at Hicks Haul

Join us Sunday morning in OC Parks’ Irvine Ranch Open Space for a fitness-focused hike on the Hicks Haul Road, West Loma and Shoestring trails in Limestone Canyon. Hikers will enjoy wonderful views and a panoramic overview of Orange County. The hike starts at Hicks Haul Road staging area and will cover a distance of 8 miles, about 5 miles of the hike is on paved surface and rest on trails. Participants are expected to hike close to 3 miles per hour and come prepared with closed toe hiking boots or shoes, water, trail snacks, sunscreen, hat, day pack or fanny pack, and any other necessary equipment or supplies you might need to keep you safe on this hike.
Bommer Canyon East Fork and Ridge Route Loop Hike

Experience the serenity of Bommer Canyon during this moderate-paced hike in the Irvine Open Space Preserve. We’ll experience mature coastal sage scrub and fantastic views overlooking the city of Irvine and the hillsides to the north. This hike is just over 3 miles and includes 700 feet of total climbing elevation with several very steep inclines. The steepest section ascends 300 feet in a quarter-mile. Participants must be in good physical condition.