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 email@example.com for assistance.
Saturday, October 20, 2018
This slower-paced interpretive hike in Limestone Canyon is 7 miles and includes some hills on the trek to Dripping Springs – a fern-covered rock face dripping with life-giving water creating an essential watering hole for wildlife in the canyon.
Join us for a docent-led mountain bike ride through the Irvine Open Space Preserve. This moderate-paced mountain bike tour through the picturesque hills of Bommer and Shady Canyons includes a combination of ranch roads and multiple intermediate and advanced level technical single-track trails, with many steep climbs and descents. Over 2700 feet of accumulated climbing […]
Join Laguna Canyon Foundation and OC Parks at one of our habitat restoration stewardship events in Laguna Coast Wilderness Park as we learn and work together to create a healthier habitat for the native plants and wildlife that call the canyon their home. Depending on the time of year, volunteers will assist with various stewardship […]
Enjoy self-guided access in the southern portion of Irvine’s Open Space Preserve. The entire southern Open Space Preserve trail network will be open for self-guided hiking and biking from 8 am to 2 pm. This includes the single-tracks in Shady Canyon and Bommer Canyon that are reserved for guided activities only. Registration is not required […]
Do a good deed and get a dose of Nature! Come experience the cool mornings and the spicy aromas of a California autumn while working with us at our one-of-a-kind Native Seed Farm in Irvine. You will be harvesting seeds from robust native fall wildflowers and bushes— things like California Buckwheat and our iconic Sagebrush. […]
Join local astronomers for a view of the Fall night sky. Enjoy the opportunity to also look through telescopes at stars and other celestial objects. Try out loony lunar activities and visit Science Heads’ Mobile Observatory. No hiking involved. Come prepared with layers of clothing to keep warm. You can also bring drinks and snacks. […]
Sunday, October 21, 2018
Help improve native habitat at Peters Canyon Regional Park by removing non-native invasive plants, which steal light, water and nutrients from native species. Please bring sunscreen, drinking water, light snacks, and gloves, and wear a hat and closed-toe shoes.
Come along with us to visit one of the most photographed and famous sites on the Irvine Ranch Natural Landmarks – The Sinks. This interpretative program will begin with a hike along a riparian corridor currently being restored with native plants and will visit both east and west sides of The Sinks. Along the way we’ll […]
Come out and enjoy this family fun activity on the Mesa. We will start with an activity to make your own fossile then we will take 2-3 mile hike looking for fossils deposited here in Orange County millions of years ago when Orange County was a sea. A slight elevation gain (200 feet) to start […]
A slow-paced beginner mountain bike ride for adults in Limestone Canyon through sycamores, oaks, and habitat native to California. The route takes us to The Sinks, Orange County’s own mini “Grand Canyon.” Along the way, we will stop and talk about the local habitat, and hope to see some of our local native animals and […]
Think you would enjoy a challenging. but relaxing evening biking in the wilderness on empty trails with both a sunset and a nice view of city lights, then join us on this summer time ride to Mini Moab. Mini Moab is located at the top of Coal Canyon above the 91 Freeway; this spot provides […]
Monday, October 22, 2018
Come along with us on this fast-paced morning hike through beautiful Limestone Canyon Nature Preserve to the East Sinks Viewing Deck. 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 […]
Discover the hidden canyons and trails found on the Irvine Ranch Natural Landmarks. These seldom hiked trails offer fantastic vista views, secluded oasis of oaks or rising rocky outcrops. Come take a stroll along the trails to discover the hidden gems of Orange County. We will listen to tales how the geology was formed underfoot to […]