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/medium 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, and closed-toe footwear, first aid, 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

Come and hike with us to the East Sinks in Limestone Canyon, location of the Earthcache site — a special place people can visit to learn about unique aspects of the Earth — listed on www.geocaching.com. The cache is titled “The Sinks- Irvine Ranch Wildlands, GC1ZB6V.” This hike is open to existing geocachers, those curious about geocaching and non-geocachers alike. There will be as much time as needed spent at The Sinks so all geocachers can record their data and make their observations to confidently log their visit to this cache site.

The Sinks is a unique and spectacular geological formation in Limestone Canyon Nature Preserve. This hike will follow the Limestone Ridge to The East Sinks viewpoint, and then travel through Cactus Canyon and Limestone Canyon for an approximate 6.5-mile loop. There will be multiple climbs and descents for a moderate and challenging hike totaling 2000′ elevation gain.

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, 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. To learn more about the staging areas and activity locations, please visit our Staging Areas Playlist page.

Learn more and register here

Enjoy riding in the wilderness on empty trails? Then join us on a docent-led mountain bike ride that loops through Baker Canyon. The route features expansive views of Silverado and Santiago Canyons, Irvine Lake and the Santa Ana Mountains, as well as the flora and fauna of the Black Star Canyon Wilderness Park. This is a great opportunity to enjoy this seldom visited wilderness area of Orange County!

This ride is designed for the experienced beginner to intermediate rider who is physically fit and can climb moderate climbs of up to one mile and is comfortable riding single track trails with some short/beginner technical sections. The ride is on largely non-technical single track trails and the fire roads that interconnect them. The ride will regroup and rest as needed and an opportunity will be provided for a snack break.

Please note, the ride is approximately 10 miles long with 1500 feet of elevation gain. The route has climbs with some moderately steep sections.

This activity originates and ends at the Baker Canyon Staging Area and takes place in OC Parks’ Black Star Canyon Wilderness Park.

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, 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 activity on the land. Electric Mountain Bikes of any class or type are not permitted.

Learn more and register here

Join us Sunday morning in OC Parks’ Irvine Ranch Open Space for a fitness-focused hike on the Hicks Haul Road, West Loma and Shoestring trails in Limestone Canyon. Hikers will enjoy wonderful views and a panoramic overview of Orange County. The hike starts at Hicks Haul Road staging area and will cover a distance of 8.5 miles, about 5 miles of the hike is on paved surface and rest on trails. Participants are expected to hike close to 3 miles per hour and come prepared with closed toe hiking boots or shoes, water, trail snacks, sunscreen, hat, day pack or fanny pack, and any other necessary equipment or supplies you might need to keep you safe on this hike.

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, 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. To learn more about the staging areas and activity locations, please visit our Staging Areas Playlist page.

Learn more and register here

Join us at Santiago Oaks Regional Park to lend a hand and help OC Parks staff prepare for a new butterfly garden! We will remove invasive species, clean up excess debris, trim large shrubs and prepare the area for native plantings.

The site is located next to the Santiago Oaks Nature Center. General purpose gardening gloves and long pants are recommended. Tools and gloves will be available on-site.

The program and parking are free for volunteers. Please notify the park attendant you are volunteering when you arrive. Bring plenty of water, sunscreen and snacks. The program will begin at the Nature Center.

This is a Level 2 difficulty rating for habitat restoration.

Advance registration required.  Learn more and register here.

For questions, please contact Resource Specialist Shelly Marshall at 657-253-3681 or shelly.marshall@ocparks.com.

Embark on a journey through the stars at our Space Ranger Program and Starr Party! The Space Ranger Program begins one hour before sundown and features interactive activities and a short talk, perfect for families and space enthusiasts of all ages. 

Once the sun sets, join us outdoors for the Starr Party, where telescopes and expert guidance will help you explore the night sky until approximately 9 p.m. Visitors may attend one or both activities. No equipment needed, just your curiosity!

This is a family-friendly program recommended for children 5 and older. Minors must be accompanied by a parent or guardian. All activities will take place at the nature center. 

The program is free and parking is $5 per vehicle. 

Advance registration is required for the Space Ranger portion of the program. Learn more and register here.

Participants may call (949) 923-2210 to confirm we’re clear for takeoff!

Rain or inclement weather may cancel this program. 

Embark on a journey through the stars at our Space Ranger Program and Starr Party! The Space Ranger Program begins one hour before sundown and features interactive activities and a short talk, perfect for families and space enthusiasts of all ages. 

Once the sun sets, join us outdoors for the Starr Party, where telescopes and expert guidance will help you explore the night sky until approximately 9 p.m. Visitors may attend one or both activities. No equipment needed, just your curiosity!

This is a family-friendly program recommended for children 5 and older. Minors must be accompanied by a parent or guardian. All activities will take place at the nature center. 

The program is free and parking is $5 per vehicle. 

Advance registration is required for the Space Ranger portion of the program. Learn more and register here.

Participants may call (949) 923-2210 to confirm we’re clear for takeoff!

Rain or inclement weather may cancel this program. 

**This event has been canceled due to wet and muddy conditions.

OC Parks invites you to discover Orange County’s ancient past through rare fossil displays on National Fossil Day. An OC Parks paleontologist will be on-site with a special pop-up fossil showcase on Wednesday, October 15 at the Visitor Center at Aliso and Wood Canyons Wilderness Park. 

This family-friendly drop-in interpretive experience will feature rare fossils from Orange County’s collection, offering a unique opportunity to explore the region’s prehistoric past. Come see fossils of ancient sharks, whales, seals and walruses, as well as strange animals like the mysterious Desmostylus. 

The program is free and parking is $3 per vehicle.

Join OC Parks staff and volunteers to observe the sights, sounds and smells of nature during an intimate nature walk led by a certified nature and forest therapy guide. Through a series of invitations, you will be encouraged to explore in the present moment and deepen your connection with nature. 

Please note this is a slow-paced program designed for ages 14 and older. Minors must be accompanied by a guardian.

Wear comfortable attire and bring a blanket, seating pad or small chair. 

The program and parking are free.

Advance registration required. Learn more and register here.

For questions, please contact Resource Specialist Emma Arago at emma.arago@ocparks.com or call (949) 923-2277.

Adverse weather will cancel the program.

Inspired by the Japanese practice of “shinrin-yoku,” or “forest bathing,” this walk invites you to take a break and immerse yourself in the nature around you. Throughout the program you will be encouraged to explore your surroundings using your senses to deepen your connection with nature.

This is a guided, slow-paced walk with frequent opportunities to meditate and relax. The program is designed for ages 16 and older. Participants are encouraged to bring a yoga mat or other comfortable seating and their favorite tea or water for the closing tea ceremony. Please wear comfortable attire and be prepared to walk on uneven terrain.

The program will begin outside the nature center. Please arrive on time to experience the full sequence of the program.

Advance registration is required. Learn more and register here.

Inclement weather will cancel the program.

The program is free and parking is $3 per vehicle.

For questions, please contact Resource Specialist Shelly Marshall at 657-253-3681 or shelly.marshall@ocparks.com