Non-native and invasive plant species are invading our native habitat and open spaces. They aggressively compete with our native plants for resources and spreads rapidly once established. Monitoring, management, and removal of these plant species is an important aspect of land management and habitat restoration.

Help us to manage populations of invasive plants and remove them from the habitat. No previous experience is necessary, just a desire to work outside and get dirty! Snake chaps, gloves, and tools will be provided but please feel free to bring your own if you have them. Please wear long pants, long sleeved shirts, close toed shoes, and protective sun protection. Note: This is a wilderness area, there are natural hazards. Snakes, including rattlesnakes, are occasionally seen here.

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.

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. During this hike in the Irvine Ranch Open Space, you may travel at various hiking speeds based on your comfort level.  This out-and-back program travels 3.5 miles round trip up to scenic Loma Ridge and back down. Please bring a red-tinted flashlight as the return portion of the hike may be after sunset.

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. 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

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays. 

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays. 

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays. 

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays. 

Spend the morning in a beautiful oak woodland watering Coast Live Oak seedlings and native plants in Weir Canyon. To get to the planting site we will travel for 15 minutes in a safari style truck giving you majestic views of Weir Canyon. We may be using shovels and small handheld tools. No experience necessary.

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-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

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays. 

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays. 

Class includes hands-on learning, fun crafts, and meeting zoo creatures up close! 

Program is for ages 3-4 years old ONLY. 

Cost is $5 per child (one parent included). Parent must accompany child for entire program.

Phone registration is required. To register for a class, call 714-973-6846. 

Parking fee is $3 per vehicle on weekdays.