Join us in OC Parks’ Irvine Ranch Open Space for a challenging docent-led mountain bike ride for very experienced off-road riders in excellent cardio shape through Fremont and Weir Canyons to Sierra…

Take a leisurely ride on beautiful Hall Canyon and Helo trail in the Black Star Wilderness Area, home of oak woodlands, grasslands, and coastal sage scrub. View evidence of the old ranch days when…

This collaboration between OC Public Libraries and Irvine Ranch Conservancy is an exciting nature experience for the community to learn more about the natural environment surrounding Orange County.…

Join us for a strenuous, extremely challenging, fast-paced, early morning cardio hike in Fremont Canyon Nature Preserve, part of OC Parks’ Irvine Ranch Open Space. Our hike with start off at Fremont…

Join us for an evening/night mountain bike ride through Limestone Canyon Nature Preserve and Red Rock Wilderness, part of OCParks’ Irvine Ranch Open Space. We will ride approximately 12 miles, with…

Spend your morning nurturing Coast Live Oak seedlings within a beautiful oak woodland in OC Parks’ Baker Canyon. This activity will involve watering the planted oaks, weeding around them, and adding…

Come explore beautiful Gypsum Canyon Wilderness, the northernmost portion of OC Parks’ Irvine Ranch Open Space. This scenic hike involves steepish climbs and descents on several single-track trails…

Think you would enjoy a challenging evening bike ride in the wilderness on empty trails with both a sunset and a view of the distant city lights of Orange County, then join us on this docent-led…

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…

Come and hike with us to the East Sinks in Limestone Canyon, location of the Earthcache site — a special place people can visit to learn about unique aspects of the Earth — listed on www.…