The Great Backyard Bird Count is a national citizen science initiative sponsored by the Audubon Society, which allows anyone of any age to make a meaningful contribution to bird conservation and protection.

For this family friendly event, we will gather at the Muth Center and learn how to submit bird count data and then hit the trail to count some birds!

OC Parks staff will teach guests how to identify our local bird species as we go and loaner binoculars will be available on a first come, first serve basis.

Participants can expect to walk 2-3 miles over uneven terrain.

Minors aged 16 and younger must have legal guardian present at all times.

Rain will cancel the event.

Walk-ins are welcome, but space is limited, so registration is suggested.

For more information email nathan.taxel@ocparks.com or call 949-923-2277

Volutaria tubuliflora otherwise known as Egyptian Knapweed is a recently introduced invasive plant to our area and we need your help to get rid of it! It is not yet widespread, and we have a chance to prevent it from taking over at Upper Newport Bay.

During the growing season, we will meet once a month to survey for this nasty pest and remove everything we find. No experience needed!

Minors aged 16 and younger must have legal guardian present at all times.

Rain will cancel the event.

Walk-ins are welcome, but space is limited, so registration is suggested.

For more information email nathan.taxel@ocparks.com or call 949-923-2277

Community service hours are available for this event

Join us for an early morning distance hike from remote Fremont Canyon to the oak woodlands of Weir Canyon. Shortly after leaving Irvine Regional Park, this hike climbs steeply from the mouth of Fremont Canyon and passes an abandoned coal mine. We continue through Upper Blind Canyon, up to a scenic overlook and then drop down to Weir Canyon as we wind our way back to Irvine Regional Park.

Distance is up to 14 miles and is designed for advanced hikers. Participants must be physically fit and have distance hiking experience.

Come start your week with us on our Super Treks in the Landmarks. Join us as we explore Bommer Canyon and Crystal Cove State Park. After hiking up to Bommer Ridge, we drop down and loop through Crystal Cove State Park. Along the way, we will be rewarded with views of the ocean and spectacular canyons. There will be several steep ascents and descents.
Participants must be able to hike 11 miles with an elevation gain of 1800 feet at an average moving rate of 3 miles per hour. All participants must carry their own water! Please come prepared with a pack, plenty of water, snacks, sturdy closed-toe hiking shoes or boots, sunscreen, first aid, and all other supplies to keep you safe and healthy on the trail. Under-prepared participants may be denied access to the event!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.

There are critters in your backyard: big ones, little ones, furry ones, ones with feathers, and ones with scales. They go about their business and pay little attention to you. In fact, they would rather not be bothered unless you were a tempting morsel of food. Round Canyon is teeming with wildlife, and waiting for you to experience the solitary bobcat, the elusive ring-tailed cat, the mighty great horned owl, and playful ground squirrels, among many others.

Understanding the 1-through-5 Difficulty Ratings system will help you evaluate your readiness to participate in this level-2 activity on the land.

Join us every Monday night for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County.

This hike travels about 3.5 miles, up to the top of Loma Ridge and back down. The hike is conducted at about 3-3.5 miles per hour, but you may travel a bit faster or slower, at a walk, run, or jog depending on your comfort level. Most participants finish the route in about 1 hour. Because of the paved surface of the road, you may wear regular running or walking shoes. Trail shoes are fine, but not required. Please bring adequate water!

Join us for an exhilarating morning fitness hike on the paved Hicks Haul Road. This hike is a 6-mile route as a group – which is conducted at the speed of about 3.0 to 3.5 miles per hour.

The group may spread out for social distance reasons but generally will remain together for the entire hike.

The footing on the asphalt paved road is smoother than dirt roads and single-track trails normally found in Limestone 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 hike for anyone who wants a “wilderness experience” without getting dirty! We will have two fairly steep hill ascents and descents. 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.

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. During the spring, summer and fall, hikers will enjoy wonderful sunset views and a panoramic overview of Orange County. This hike travels about 3.5 miles, up to the top of Loma Ridge and back down.

This week in the Irvine Open Space, we’ll be in Quail Hill, once part of the historic Irvine cattle ranch. The hike is seven and a half miles with some climbing, but rewards you with fantastic views overlooking Laguna Canyon and many Irvine locales. Please bring water, a trail snack, sunscreen, hat and any other necessary equipment to keep you safe on the trail.   Get your boots out and register to hike the Quail Trail and Shady Canyon singletrack trails.

Please join us at the Quail Hill native plant nursery to plant native shrubs and cactus along Quail Hill Loop.  We will be working in close proximity to the parking area. 

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-2 activity on the land.

Enjoy an evening hike through stunning rock formations and fragrant native plants as you listen to the sounds of nature. This hike is done at an easy walking pace. This out-and-back program travels 3.5 miles round trip to scenic Loma Ridge and back down. Please bring a red-tinted flashlight as the return portion of the hike may be after sunset.

Join us for a scenic, fast-paced, challenging, distance hike in the beautiful Limestone Canyon Nature Preserve. This hike is for physically fit hikers who enjoy the challenge of multiple steep climbs and descents. This 10–12 mile hike offers sweeping views of Orange County and the Santa Ana Mountains as well as possible wildlife sightings. This hike may include a visit to The Sinks and/or Dripping Springs.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-4 activity on the land.