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 all the way to Tecate Cypress. After enjoying the view, we’ll hike back the same way to our starting point. This hike is for experienced, physically fit hikers who enjoy the challenge of multiple steep climbs and descents. This hike is much faster than a regular walking hike. We average four (4) miles per hour fast-paced and is extremely difficult over steep terrain in the wilderness setting.

Please note, advanced registration required, no walk-up registration is permitted.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-5 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering. To learn more about the staging areas and activity locations, please visit our Staging Areas Playlist page.

Learn more and register here