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.
Click here to learn more about IRC-Certified Volunteers. • Click here to learn more about the Difficulty Ratings.
Sunday, September 18, 2016
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, October 16, 2016
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we will be hiking at least one mile up a steep trail (Oak Trail and Bumble Bee Trail) to reach our planting site, and then back down upon conclusion of the activity.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, November 20, 2016
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, December 18, 2016
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we will be hiking at least one mile up a steep trail (Oak Trail and Bumble Bee Trail) to reach our planting site, and then back down upon conclusion of the activity.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, January 15, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, February 19, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, March 19, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, May 21, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, June 18, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, July 16, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, August 20, 2017
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, October 15, 2017
CANCELLED due to Fire Weather: Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, November 19, 2017
CANCELLED due to Fire Weather: Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Sunday, December 17, 2017
CANCELLED due to Fire: Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.
Monday, December 10, 2018
Santiago Oaks Stewardship

Leave your park better than you found it! Join Irvine Ranch Conservancy staff during monthly habitat stewardship activities at Santiago Oaks Regional Park, aimed at keeping the park’s habitat healthy. Identified in collaboration with the Park Rangers that patrol the trails everyday, stewardship projects can include planting to combat the effects of hiking, biking and riding off-trail, removing invasive plant species that threaten to crowd out the diversity of native plants, and more!
No previous experience is needed, however please note that we may be hiking up steep trails.
Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.