Access is first come, first served until parking capacity is reached. No registration required.

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. Trails will be open for self-guided hiking, biking and equestrian use. A variety of trail loops offer extended exploration throughout the canyon. Take time to explore the local plant communities and beautiful scenery in easy 30-minute walks or in 7+ mile-strong cardio treks.

Rain or inclement weather will cancel the program. 

Click here to learn more.

Access is first come, first served until parking capacity is reached. No registration required.

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. Trails will be open for self-guided hiking, biking and equestrian use. A variety of trail loops offer extended exploration throughout the canyon. Take time to explore the local plant communities and beautiful scenery in easy 30-minute walks or in 7+ mile-strong cardio treks.

Rain or inclement weather will cancel the program. 

Click here to learn more.

Access is first come, first served until parking capacity is reached. No registration required.

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. Trails will be open for self-guided hiking, biking and equestrian use. A variety of trail loops offer extended exploration throughout the canyon. Take time to explore the local plant communities and beautiful scenery in easy 30-minute walks or in 7+ mile-strong cardio treks.

Rain or inclement weather will cancel the program. 

Click here to learn more.

Advance registration is required for this program.

Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon located within OC Parks’ Irvine Ranch Open Space. Trails will be open for self-guided trail use with routes that vary in distance and level of difficulty, ranging from easy one-hour walks to strenuous 15-mile cardio treks. Whether traveling by foot or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers and mountain bikers alike.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.

Advance registration is required for this program.

Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon located within OC Parks’ Irvine Ranch Open Space. Trails will be open for self-guided trail use with routes that vary in distance and level of difficulty, ranging from easy one-hour walks to strenuous 15-mile cardio treks. Whether traveling by foot or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers and mountain bikers alike.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.

Advance registration is required for this program.

Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon located within OC Parks’ Irvine Ranch Open Space. Trails will be open for self-guided trail use with routes that vary in distance and level of difficulty, ranging from easy one-hour walks to strenuous 15-mile cardio treks. Whether traveling by foot or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers and mountain bikers alike.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.

Advance registration is required for this program.

Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon located within OC Parks’ Irvine Ranch Open Space. Trails will be open for self-guided trail use with routes that vary in distance and level of difficulty, ranging from easy one-hour walks to strenuous 15-mile cardio treks. Whether traveling by foot or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers and mountain bikers alike.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.

Advance registration is required for this program.

Start your weekend off by exploring numerous opportunities found throughout magnificent Limestone Canyon located within OC Parks’ Irvine Ranch Open Space. Trails will be open for self-guided trail use with routes that vary in distance and level of difficulty, ranging from easy one-hour walks to strenuous 15-mile cardio treks. Whether traveling by foot or wheels, Wilderness Access Day in Limestone Canyon is a treasure waiting to be discovered by hikers and mountain bikers alike.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.

Advance registration is required for this program.

Explore OC Parks’ Irvine Ranch Open Space and experience the beauty of Limestone Canyon from the back of your horse. Trails will be open for self-guided hiking, biking and equestrian use. Equestrian riders who have trail riding experience with a fit and able horse can enjoy trails that were once historic ranch roads. Take in the awe-inspiring vistas from the mighty ridge tops and drink in the cool canyon shade through the oak grove.

There is limited space for equestrian parking. Riders must be able to transport their horse to the staging area.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.

Advance registration is required for this program.

Explore OC Parks’ Irvine Ranch Open Space and experience the beauty of Limestone Canyon from the back of your horse. Trails will be open for self-guided hiking, biking and equestrian use. Equestrian riders who have trail riding experience with a fit and able horse can enjoy trails that were once historic ranch roads. Take in the awe-inspiring vistas from the mighty ridge tops and drink in the cool canyon shade through the oak grove.

There is limited space for equestrian parking. Riders must be able to transport their horse to the staging area.

Rain or inclement weather will cancel the program. 

Advance registration is required. Learn more and register here.