Join us on a slow-paced hike along the back-country ridges and valleys of Limestone Canyon, part of OCParks’ Irvine Ranch Open Space. We’ll travel on rough old ranch roads passing by woodlands of majestic oak trees and expanses of Coastal Sage Scrub. Enjoy wonderful vistas from Loma Ridge. Total round trip distance is 6 miles with an elevation gain of 1100 feet at an average moving rate of 2.0-2.5 miles per hour. Some of the hills are strenuous and we will take breaks as needed. Participants should be in good hiking condition and have previously completed a similar distance hike. Please come prepared with a backpack, plenty of water (at least 1 liter), snacks, sturdy closed-toe hiking shoes or boots, sunscreen, first aid kit, and all other supplies to keep you safe and healthy on the trail. Each hiker must carry their own water and supplies. Under-prepared participants may be denied access to the event.

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.

Join us on this early morning hike in OC Parks’ Whiting Ranch Wilderness Park. This hike involves steep climbs and descents on a variety of trails, both double and singletrack, and is done at an average moving pace of 3 mph. Though challenging, we are rewarded with canopied woodlands, sweeping views, and possible wildlife sightings. Please come prepared with a daypack, 70 oz. (2 quarts) of water, trail snacks, closed-toe hiking shoes, sunscreen, first aid, and any other supplies needed to keep you safe on the trail. Each participant must carry his or her own pack and water. Under-prepared participants may be denied access to this program.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road in OCParks’ Irvine Ranch Open Space. This hike allows you to choose between a 3, 6, or 8 mile route, all of which are conducted at the speed of about 3.0 to 3.5 miles per hour. The footing on the asphalt paved road is smoother than dirt roads and single track trails normally found in Limestone Canyon Nature Preserve, but is beginning to show its age with cracks, crevices and an occasional dip. Otherwise, the terrain is smooth, so this is a great walk for anyone who wants a “wilderness experience” without getting dirty! The 6 and 8 mile routes experience two fairly steep ascents and descents. The 3 mile route takes you to the top of Loma Ridge and back down. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer, and lizards are also frequently seen in this area.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3/4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Join us for a night mountain bike ride through Limestone Canyon, part of OCParks’ Irvine Ranch Open Space. This should not be your first night ride. Bring adequate lights, jacket, plenty of water, spare tubes, tools and all other equipment to be self-sufficient on the trails. We will ride approximately 11 miles, with 1500′ of climbing along singletrack trails and ranch roads. Hopefully we will see some of our local nocturnal critters.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering. Motorized recreation vehicles of any class or type are not permitted for use in the Nature Preserve.

Join us on this early morning distance hike passing through Irvine and Santiago Oaks Regional Parks and crossing into beautiful Weir Canyon Nature Preserve, part of Irvine Ranch Open Space. Leaving Santiago Oaks, we head up Weir Canyon to a scenic overlook trail and then drop down to lower Weir Canyon, winding our way back to Irvine Regional Park. Distance is 9 – 12 miles with several steep climbs and descents.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Curious to learn about the plants among us, who’s sus and who’s not? Join us for a hike at Agua Chinon, part of OC Parks’ Irvine Ranch Open Space, where we’ll look at local flora, talk about native and non-native species, and learn how different plants impact our ecosystems. Learning how to identify plants, both native and non-native, is a great way to cultivate a relationship to our local wildlands.  

This activity is geared towards participants who are curious about our local plants and ecosystem. Please bring water and all items needed to keep you safe during our walk. Hats and sunscreen are highly recommended.

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.

Come join Laguna Canyon Foundation volunteer naturalists to learn about the seasonal life of California Native Plants with Laguna Canyon Foundation volunteer naturalists on this enjoyable 2.5 mile hike (175-ft. elevation gain) over moderately uneven terrain. Please bring water and wear appropriate hiking shoes Laguna Coast Wilderness Park, James Dilley Preserve (405 South to 133 south to stoplight at 73 turn-off; make a U-turn, go 1 block. Dilley is on the right). Online reservations required at www.lagunacanyon.org/events. To register, click here. For questions, call 949-497-8324 Mon-Fri or 949-923-2235 Sat/Sun. Parking: $3

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.

Please be aware this is a Fitness Hike and not for beginners; the pace is approximately a 19-minute mile. Raise your heart rate and your spirits on this difficult, strenuous, and fast-paced, 6.6-mile hike (1,100-ft. elevation gain) over very steep, uneven terrain with Laguna Canyon Foundation volunteers.

Please note the following safety precautions and protocols:

– Pre-registration on lagunacanyon.org is required for this event. Please register here. No walk-ups.
– Each participant must register individually. For group registration, please email derek@lagunacanyon.org for availability.
– Group sizes will be minimized for safety purposes.
– Each individual adult must sign the liability waiver – provided by the lead volunteers – when they arrive at the event.
– Minimum age of 16 years old accompanied by a parent/guardian. If under 18 years old, a waiver must be signed by a parent/guardian, provided at the start of the event.
– Participants must bring plenty of water, closed-toed hiking shoes, and sun protection.
In an effort to protect all employees, volunteers, and participants, please do not attend if you are not feeling well, have symptoms of illness or have been in contact with someone who was ill.

Location: Ridge Park, Laguna Coast Wilderness Park. Meet at the end of Ridge Park Road/Trail Entrance.

Parking: Free.

Looking for a way to give back to Nature this Winter? 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! 

Reviewing the 1-5 Difficulty Ratings will help you evaluate your readiness to participate in this Level 2 activity. Activities may include bending, stooping, crouching, squatting, long periods of standing, reaching, pulling, grabbing, and pushing.

Please note our Minors Policy for all public activities: All minors (under 18 years of age) must be accompanied by their respective parent or legal guardian. Both parent and their accompanying minor(s) must be registered for the Irvine Ranch Conservancy led activity they wish to attend.

Spend your morning helping IRC monitor and weed the new Butterfly Islands in Limestone. With your help we will be able to create “islands” of host and nectar plants for butterflies in decline in Limestone Canyon.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Around 25,000 plants have been installed at our Big Canyon restoration site, and we would love your help protecting the new plantings from invasive plants. Invasive plants pose a huge threat to displacing native plant communities and wildlife at the Bay, second only to habitat loss. By removing invasive weeds, we will ensure the Big Canyon project site thrives with native plants for years to come. No prior plant ID/weeding experience necessary.

Minors must have a legal guardian present at all times.

To register, go to: RestoreBigCanyon.eventbrite.com

Interested in bringing out a large group of 15 or more? Please contact Alys Arenas at alys.arenas@newportbay.org for more information on how to sign up.

Time & Location
We will meet at 9am at the project site entrance. A map with directions will be included in your confirmation email following registration. From the parking location, the project site is a short 5-minute walk into the canyon. NOTE: There are no restrooms at this location.

What to Bring/Wear
Be sure to bring sunscreen, a hat, and plenty of water. We also recommend wearing breathable clothing that you don’t mind getting dirty. Hand tools, shovels, and gloves will be provided. All volunteers not yet fully vaccinated must wear a face mask while on the project site. Face masks are optional for fully vaccinated volunteers.

If you are comfortable riding your mountain bike in various terrain and would like to extend your opportunities to riding after dark, this Introduction to Night Riding is for you! This short cross country-style ride in the Saddleback Wilderness park will be slow paced and include a mix of single track with some brief punchy fire road climbs. With a total of 3-4 miles and approximately 350 feet of climbing, this short ride will reach a summit with panoramic views stretching from the mountains to the sea. Primary focus will be the unique aspects of night riding and is not intended as a fitness challenge. Daytime experience with the Saddleback Wilderness trails is recommended but not required. Specifically, we will start by discussing lighting options from budget to premium, helmet and bar mounts, night riding etiquette (don’t blind other riders!), and additional safety concerns. This is a great opportunity for experienced trail riders to try out their lighting systems at night in an area free of cars. It can serve as a good prerequisite to other IRC events which require previous night riding experience. Participants must provide their own mountain bike and light system appropriate for off-road riding in order to participate.

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.

Come along with us on this fast-paced morning hike through beautiful Limestone Canyon Nature Preserve, part of OCParks’ Irvine Ranch Open Space. You’ll be rewarded with a spectacular view of The Sinks as well as sweeping views of Orange County and the Santa Ana Mountains. This hike involves steep climbs and descents on both double and single-track trails.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Join us Friday mornings in our native plant nursery for 3 hours of hands-on volunteer driven fun! Bring a friend and help us grow native plants for restoration projects around the Upper Newport Bay. Each week, you will have the opportunity to assist in seasonal activities like seed collection, sowing seed flats, transplanting seedlings, pruning, processing cuttings, composting, pot washing, weeding, and maintaining nursery space.

Minors must have a legal guardian present at all times.

This volunteer work will take place outdoors at the Back Bay Science Center. Although most of the work will be conducted under shade, volunteers should be prepared to stand and be exposed to changing weather for various lengths of time. Please bring sturdy closed-toe shoes, hiking or outdoor working attire, a reusable water bottle, sunscreen and a hat. Free parking and public restrooms are available on site. No experience necessary. Training and tools will be provided.

To register, go to: SowandGrowFridays.eventbrite.com

Join OC Parks staff for Wild Tales, offered every Friday. Each session will include a kid friendly hike, story time and craft project.

Activities are designed for ages 2-4 but all are welcome.

All minors under 16 must be accompanied by a guardian at all times.

Being that our easy hikes are on dirt trails, wearing clothes and shoes fit for such trail conditions are recommended.

Rain or heat advisory will cancel the event.