Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road in OC Parks’ Irvine Ranch Open Space. This hike allows you to choose between a 3, 6 or 8-mile route, all of which are conducted at the speed of about 3-3.5 mph. The footing on the asphalt paved road is smoother than dirt roads and singletrack trails normally found in Limestone Canyon Nature Preserve, but is beginning to show its age with cracks, crevices and an occasional dip. Otherwise, the terrain is smooth, so this is a great walk for anyone who wants a “wilderness experience” without getting dirty! The 6 and 8-mile routes experience two fairly steep ascents and descents. The 3-mile route takes you to the top of Loma Ridge and back down. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer and lizards are also frequently seen in this area.

Participants should be confident in their ability to hike 3, 6, or 8 miles at a steady pace. Please come prepared with proper hiking attire, ample water and adequate sun protection. Because of the paved surface, you may wear walking or running shoes instead of hiking boots. For the longer distances, at least two quarts of water (64 oz) is recommended. Intended for participants ages 16 and older.

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.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3/4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Learn more and register here.

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road in OC Parks’ Irvine Ranch Open Space. This hike allows you to choose between a 3, 6 or 8-mile route, all of which are conducted at the speed of about 3-3.5 mph. The footing on the asphalt paved road is smoother than dirt roads and singletrack trails normally found in Limestone Canyon Nature Preserve, but is beginning to show its age with cracks, crevices and an occasional dip. Otherwise, the terrain is smooth, so this is a great walk for anyone who wants a “wilderness experience” without getting dirty! The 6 and 8-mile routes experience two fairly steep ascents and descents. The 3-mile route takes you to the top of Loma Ridge and back down. Along the way, you will have sweeping views of much of Orange County and the Santa Ana Mountains. Various animals, like hawks, deer and lizards are also frequently seen in this area.

Participants should be confident in their ability to hike 3, 6, or 8 miles at a steady pace. Please come prepared with proper hiking attire, ample water and adequate sun protection. Because of the paved surface, you may wear walking or running shoes instead of hiking boots. For the longer distances, at least two quarts of water (64 oz) is recommended. Intended for participants ages 16 and older.

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.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3/4 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Learn more and register here.

It’s easy to think many of the birds we see and hear look and act the same. But do they? Bring your binoculars and join us on a slow to moderate-paced walk in OC Parks’ Irvine Ranch Open Space as we search for resident and visiting birds of the local coastal sage scrub, oak woodland, riparian and grassland habitats. We will discuss the diverse features of the birds we observe and how they match the season, their habitat and lifestyle. We will travel mostly on ranch roads, usually without shade. Beginners to advanced bird enthusiasts are welcome. Please wear sturdy shoes suitable for hiking and bring water, along with sun protection such as a hat and sunscreen. Bring a small birding field guide if you have one. A few binoculars will be available to borrow.

Please note that you will be asked to adhere to the following measures during the activity 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.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land. Please visit our FAQ page for answers to activity specific questions you may have prior to registering.

Learn more and register here.

Visitors to IRC’s Native Seed Farm are first greeted by our Demonstration Garden, providing inspiration for regionally suitable plant gardens. Our garden hosts a variety of native plant species which support a healthy local ecosystem!

Volunteers are invited to help at our monthly Garden Maintenance Day! Our tasks each day are to be determined, but we’ll be tackling whatever jobs are a top priority to keep our garden teeming with native plant life. Weeding, clearing, cutting, digging, watering - whatever it takes! Activities may include bending, stooping, crouching, squatting, long periods of standing, reaching, pulling, grabbing and pushing.

Just like all settings on the Landmarks, please always be aware of your surroundings. There may be unseen and hidden hazards in the area, as well as wildlife crossing through finding refuge. Please be sure to follow all instructions provided to you from your lead during this activity and follow standard trail protocols, including remaining in areas that are designated for your use only.

Learn more and register here.

Visitors to IRC’s Native Seed Farm are first greeted by our Demonstration Garden, providing inspiration for regionally suitable plant gardens. Our garden hosts a variety of native plant species which support a healthy local ecosystem!

Volunteers are invited to help at our monthly Garden Maintenance Day! Our tasks each day are to be determined, but we’ll be tackling whatever jobs are a top priority to keep our garden teeming with native plant life. Weeding, clearing, cutting, digging, watering - whatever it takes! Activities may include bending, stooping, crouching, squatting, long periods of standing, reaching, pulling, grabbing and pushing.

Just like all settings on the Landmarks, please always be aware of your surroundings. There may be unseen and hidden hazards in the area, as well as wildlife crossing through finding refuge. Please be sure to follow all instructions provided to you from your lead during this activity and follow standard trail protocols, including remaining in areas that are designated for your use only.

Learn more and register here.

*This program has been canceled due to excessive heat warning.*

Black Star Canyon, part of OC Parks’ Irvine Ranch Open Space, offers pleasant introductory trails for beginner hikers and families as well as challenging experiences for seasoned trail users. Designated trails are available for self-guided hiking, biking and equestrian use. A variety of trail loops offer extended exploration throughout the canyons. Take time to explore the local plant communities and beautiful scenery in easy 30-minute walks or take in 7+ miles in a strong cardio trek.

There is limited space for equestrian parking along Black Star Canyon Road, carpooling is strongly encouraged. Riders must also have the ability to transport their horse to the staging area. It is a “first come, first serve” for trailer parking and therefore early arrival is HIGHLY recommended. Major crowds are typically present at the very start of the event. There are not typical equestrian amenities at the event such as hitching posts, steps to mount your horse or water troughs. Please be sure to time your arrival accordingly so you have plenty of time to enjoy the trails with your horse.  

Please note that you are asked to adhere to the following measures during the activity in order to participate:

• Arrive with all necessary equipment to keep you safe on the trail, including water, proper attire, and footwear, first aid, additional items needed to address health needs, etc.
• Restrooms will be available, but facilities will not be sanitized for each individual.

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.

Participants are required to stay on designated trails at all times. In addition to being a rare and sensitive habit, the Irvine Ranch Open Space is under strict protection. There are often unseen hazards just off-trail including, but not limited to, mountain lions, poison oak, ticks, poisonous spiders and venomous snakes. Park rangers may issue citations for visitors found off-trail so for your safety, please stay on the designated paths during your visit in Black Star Canyon. To learn more about the staging areas and activity locations, please visit our Staging Areas Playlist page. 

Learn more and register here.

*This program has been canceled due to excessive heat warning.*

Black Star Canyon, part of OC Parks’ Irvine Ranch Open Space, offers pleasant introductory trails for beginner hikers and families as well as challenging experiences for seasoned trail users. Designated trails are available for self-guided hiking, biking and equestrian use. A variety of trail loops offer extended exploration throughout the canyons. Take time to explore the local plant communities and beautiful scenery in easy 30-minute walks or take in 7+ miles in a strong cardio trek.

Pre-registration is not required for this event, though it is available on the website. If you need driving directions, use the online registration to receive a map and instructions for getting to the Baker Canyon Staging Area. Parking is limited on Black Star Canyon Road and carpooling is strongly recommended. You will not be required to sign in upon arrival, though an information booth with trail maps and suggested routes will be available in the staging area.

Please note that you are asked to adhere to the following measures during the activity in order to participate:

• Arrive with all necessary equipment to keep you safe on the trail, including water, proper attire, and footwear, first aid, additional items needed to address health needs, etc.
• Restrooms will be available, but facilities will not be sanitized for each individual.

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.

This is a natural area characterized by certain inherent dangers including mountain lions, rattlesnakes, poisonous plants and insects, weather extremes, loose rocks and rugged terrain. The Irvine Ranch Open Space contains rare and sensitive habitat and is under strict protection. Participants are required to stay on designated trails at all times. Park rangers may issue citations for visitors found off-trail. For your safety, please stay on the designated paths during your visit to Black Star Canyon. To learn more about the staging areas and activity locations, please visit our Staging Areas Playlist page.

Learn more and register here.

Join us in beautiful Weir Canyon for this moderate paced cardio hike. Along the trail, you’ll pass through coastal sage scrub, grasslands and oak woodlands where deer and bobcats are frequently observed. Multiple steep climbs and descents, and sweeping views are included throughout this 6-mile hike. Please make sure you are in excellent physical condition! Even though this is a slower cardio hike, it is faster than a walk. You must be able to hike 3+ mph the entire time without stopping.
 

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, and 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.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please review our Trail Tips and FAQ pages to ensure you arrive prepared for this hike.

Learn more and register here.

*This program has been canceled.*

Join us in beautiful Weir Canyon for this moderate paced cardio hike. Along the trail, you’ll pass through coastal sage scrub, grasslands, and oak woodlands where deer and bobcats are frequently observed. Multiple steep climbs and descents, and sweeping views are included throughout this 6-mile hike. Please make sure you are in excellent physical condition! Even though this is a slower cardio hike, it is faster than a walk. You must be able to hike 3+ mph the entire time without stopping.
 

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, and 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.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land. Please review our Trail Tips and FAQ pages to ensure you arrive prepared for this hike.

Learn more and register here.

This program has been canceled due to excessive heat warning.

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. Climb the challenging State Spur trail to Cathedral Rock and then descend into Fremont Canyon while passing some of Orange County’s most spectacular geological formations. The ride continues out to Mini-Moab and then over to Sierra Peak, passing the Tecate Cypress forest, then past Sierra Peak, and over to the last descent down through historic Black Star Canyon. 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, and 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.

Please note that the direction of travel on the loop is subject to change at the docent’s discretion.

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.