Join us for a scenic, fast-paced, challenging, distance hike in the beautiful Limestone Canyon Nature Preserve, part of OCParks’ Irvine Ranch Open Space. This hike is for physically fit hikers who enjoy the challenge of multiple steep climbs and descents. This 10–13 mile hike offers sweeping views of Orange County and the Santa Ana Mountains as well as possible wildlife sightings. This hike may include a visit to The Sinks and/or Dripping Springs.

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 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.

Join us on a slow-paced hike along the back-country ridges and valleys of Agua Chinon 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 and enjoy wonderful vistas. Total round-trip distance is 6 miles with an elevation gain of 1000 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.

This week in OCParks’ Irvine Ranch Open Space, we’ll hike in Limestone Canyon to Dripping Springs. The hike is a 7-mile loop hike which includes some hills and descents. In addition to the springs, we will enjoy panoramic views of the wildlands from East Loma. Please bring water, a trail snack, sun screen, hat, and any other necessary equipment to keep you safe on the trail, and wear sturdy, closed-toe hiking boots. Participants must be able to hike 7 miles with an elevation gain of 1300 feet at an average moving rate of 3 miles per hour. Each hiker must carry his/her own water and supplies.

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.

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.

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 Zachery Flores at zachery.flores@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.

We love the nightlife! Explore the mysteries of Caspers Park after dark as we hit the trails on this leisurely night hike through Nature Loop. From creepy, crawly tarantulas, to graceful owls we’ll learn all about the nighttime creatures that call Caspers home!

Dressing in layers, wearing sturdy footwear, and bringing water are recommended.

This hike is not recommended for very small children or strollers. Children must be accompanied by a parent/guardian during the program.

No pets please, dogs are not permitted at Caspers Wilderness Park.

Red-tinted flashlights are highly encouraged.

For questions, please contact Park Ranger II, Shelly Marshall at 657-253-3681 or shelly.marshall@ocparks.com

Explore Saddleback Wilderness and hike OC Parks’ newest trails.

Learn about native plants and animals that call the area home and experience some of the best views the canyons have to offer. This moderate hike on unpaved dirt trails will be approximately 2.5 miles round trip with 200 feet of elevation gain. We’ll take breaks to enjoy the views and talk about local history throughout the hike. Highlights will include Saddleback Park racetrack and the habitat’s remarkable recovery since its closure almost 40 years ago.

Participants should come prepared with water, snacks, sun protection and sturdy walking shoes. Rain will cancel the program. Minors must be accompanied by a parent or guardian at all times.

Advance registration required.

Many studies show that bird watching can have a very positive impact on our mental health and state of mind. This slow paced and accessible bird walk will encourage bird watching practices designed to emphasize these benefits by connecting to nature, guided observation, building community, sharing stories, encouraging creativity, and practicing mindfulness.

No prior birdwatching experience is required and loaner binoculars will be available on a first come, first serve, basis. Sturdy walking shoes, water, and sun protection are recommended.

Space is limited and advance registration is required.

The event and parking are free.

Questions? Email nathan.taxel@ocparks.com

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.

Come enjoy a scenic fast-paced  evening hike in the remote Fremont Canyon Nature Preserve. 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 turn around and hike back the same way to our starting point.

This challenging hike involves steep hills and a 1200’ elevation change but the rewards are sweeping views at the magic hour of twilight, just before and after sunset. Please arrive 15 minutes early and 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.

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.

This month we will focus on a Chinese celebration called Mid-Autumn Festival. This fun night of celebration enjoys the middle of autumn with lanterns and lion dances and moon cakes. Come and enjoy an evening hike in Round Canyon.

Discover unique historical tales about the Irvine Ranch Natural Landmarks as we celebrate different cultures together! Each month, a different culture and celebration will be highlighted, usually with the program presented in multiple languages which allows everyone to fully enjoy the beauty of the land.

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.

Half the park is after dark! Come explore the nocturnal sights and sounds as we hit the trails on this leisure night hike. It’s chilly after sunset so wear warm layers, sturdy footwear, water, and bring red tinted flashlight if possible. This will help to keep our night vision from being impacted by any bright light.

This hike is not recommended for very small children or strollers. No pets please. Children must be accompanied by a parent/guardian during the program.

For questions, please contact Resource Specialist, Kelley Brugmann at 714-973-6625 or Kelley.Brugmann@ocparks.com