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Enjoy the relaxation of riding in the wilderness on empty trails. Join us on this docent-led mountain bike ride through Limestone Canyon, part of OC Parks’ Irvine Ranch Open Space. We will visit the East Viewing Platform for a panoramic view of the geological feature call "The Sinks". The route to The Sinks will include a fun downhill ride on the Dripping Springs singletrack. The return route will take us on the Limestone Ridge singletrack with views of Limestone Canyon, Santiago Canyon and the Santa Ana Mountains.

This is a slow-paced ride designed for beginners that have experience riding fire roads such as Limestone Canyon or Telegraph Canyon but want to develop their climbing and riding abilities. The ride can also be enjoyed by more advanced riders looking for a relaxed ride in a beautiful setting.

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. Motorized recreation vehicles of any class or type are not permitted for use in the nature preserve.

Please note that you will be asked to adhere to the following measures in order to participate:

  • Be registered in advance, no walk-up registration is permitted.
  • Arrive with all necessary equipment to keep you safe on the trail, including water, proper attire, closed-toe footwear, first aid, additional items needed to address health needs, etc.
  • Restrooms will be available, but facilities will not be sanitized for each individual.
  • All participants are required to sign a liability waiver upon arrival at the staging area and before beginning the activity. The waiver can be previewed here: IRC Liability Waiver
  • You may be prevented from participating if you do not adhere to the above protocols.

Additionally, in an effort to respect and protect all employees, volunteers and participants, please do not sign up or attend if you are not feeling well, exhibiting any symptoms of illness or have been in recent contact with someone who was ill.

Learn more and register here.

A mountain biker in Limestone Canyon