Join us every Monday night for a fitness-focused hike on the paved Hicks Haul Road. During the summer, 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!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness walk on the paved Hicks Haul Road. This hike allows you to choose between a 3, 6, or 8 mile route, all of which are conducted at the speed of about 3.0 to 3.5 miles per hour.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3/4 activity on the land.

The road is paved and the terrain is smooth, so this is a great walk 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.

Walkers should be confident in their ability to hike 3, 6, or 8 miles at a steady pace. Ages 16 and up. Low interpretation.

Explore Limestone Canyon by night on this intermediate mountain bike night ride. We will ride out of Augustine, up Loma Ridge, down to The Sinks, and along Limestone Ridge or Limestone Valley, depending on the group. Please plan for a distance between 10 and 15 miles. Hopefully we will see some wildlife, but we certainly will have an adventure!

Trails include natural hazards such as sand, tree roots, exposed rocks, and ruts.  Expect several steep climbs on this 12-15 mile ride with an elevation gain of 2,600 feet.  This night ride is for experienced adult riders.  Lights required.

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

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. During the summer, 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 an average of 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!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

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

Come experience Limestone Canyon’s beauty from the back of your horse. Designated trails will be open for self-guided access hiking, biking, and equestrian use during Wilderness Access Day in Limestone Canyon. Equestrian riders who have trail riding experience with a fit and able horse will enjoy the historic ranch roads of days gone by. Take in the awe-inspiring vistas from the mighty ridge tops and drink in the cool canyon shade through the oak grove.

Join an introductory hike through the beautiful Limestone Canyon Canyon Nature Preserve. This month on the guided walk, we will offer an 8-mile distance hike to The Sinks, an iconic geological formation often compared to a mini-Grand Canyon for Orange County. Chat with your naturalist as you enjoy this out-and-back flat trail as it meanders through the bottom of the oak woodland canyon, taking in the sights of hugging canyon walls, soaring hawks and possible hidden deer.

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

­­­­­­­­­­­­­­For a bird watcher, every walk is filled with anticipation.  Birds are everywhere and provide one of the most exciting ways to connect with nature.  Whether you see them out in the open space or in your backyard, birds can bring wonder, beauty and song to your world.  Come join us on a leisurely walk and learn how to develop your birding skills as well as gain an understanding of why birds matter in our world. Bring binoculars, if you have them.  This activity originates in the City of Irvine and travels into OC Parks’ Limestone Canyon Nature Preserve.

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

We start our ride on the paved Hicks Haul Road, the extension of Jeffrey Rd north of Portola Pkwy. As we warm up on the climb to the top of the road, we enjoy increasingly beautiful views over Irvine. We then follow Loma Ridge to the East, with fantastic vistas of Orange County, the surrounding wildlands, and even Catalina Island on clear days. From Loma Ridge we fly down into Limestone Canyon and then visit the Sinks, Orange County’s own “Grand Canyon.”

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

After a snack break on the viewing deck, we continue to the Box Springs, which provides year round water for wildlife like deer. Oak trees provide shade and acorns, which the Indians used to grind into acorn meal. We can still find traces of their work. On our way back, we ride down on Limestone Ridge, a fun singletrack that leads us towards the Augustine Staging area, enjoying views of Saddleback and Santiago Canyon. From there we will follow the Shoestring Trail to climb back up to Loma Ridge, and then coast back down on the paved Hicks Haul Road to our starting point.

While enjoying colorful displays of wildflowers planted by Irvine Ranch Conservancy staff and volunteers, additional help is needed to remove aggressive weeds that threaten to overtake these plantings in Bee Flat/Limestone Canyon. Your contributions will give wildflowers room to grow and your efforts will have a lasting impact on the landscape and the wildlife which depend on it. Participants will learn the names of common weeds and wildflowers, view wildlife, and enjoy rarely visited scenic vistas looking over Orange County, the Pacific Ocean, and Catalina Island! All tools and training, including plant identification, will be provided. Expect a challenging and unique workout experience as this event will include bending, kneeling and walking across slopes and uneven terrain. Sturdy footwear is recommended.

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

There is a lot of area to cover and many wildflowers to save so your assistance is greatly appreciated. Hope you can join us!

Are you ready to try a new exercise that is fun and energetic while enjoying the great outdoors? Come dance to the fantastic aerobic workout, ZUMBA!! Join us as we take on a variety of Latin flavor moves through dancing the Salsa, Maringa, Flamenco and more! Different dance routines feature interval moves from fast to slow rhythms, adding in resistance training to tone and sculpt your body while burning calories. You don’t need to be a professional dancer, just have the drive to try! It’s high energy, it’s zesty…it’s ZUMBA! Please wear comfortable workout clothes, closed toed shoes, bring plenty of water, and be ready to move!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

California native grasslands are a disappearing habitat that is home to many unique and endangered plants and animals. Please join Irvine Ranch Conservancy staff and fellow IRC volunteers for an opportunity to participate in a hands-on habitat restoration activity.  Come join the team and help native plants and wildlife so they may thrive in West Loma.

No experience is necessary other than a desire to explore and care for our open space. Participants will help IRC staff with planting native plants.  Sturdy footwear is recommended for walking on uneven terrain, kneeling, bending, and gardening in the wilderness.  All tools will be provided.

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

Join us every Monday night for a fitness-focused hike on the paved Hicks Haul Road. During the summer, 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!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

Discover unique historical tales about the Irvine Ranch Natural Landmarks as we celebrate different cultures together! Each month, a different culture and celebration will be highlighted, with the possibility of the program presented in multiple languages which will allow for everyone to fully enjoy the beauty of the land.

This month we will focus on the Chinese New Year. Come explore how people who are born in The Year of the Monkey are enthusiastic, innovative and adventurous, just like those who enjoy the Irvine Ranch Natural Landmarks!

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

Ready for a workout? Forget the gym for the day and head outside! Join us for an exhilarating morning fitness walk on the paved Hicks Haul Road. This hike allows you to choose between a 3, 6, or 8 mile route, all of which are conducted at the speed of about 3.0 to 3.5 miles per hour.

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3/4 activity on the land.

The road is paved and the terrain is smooth, so this is a great walk 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.

Walkers should be confident in their ability to hike 3, 6, or 8 miles at a steady pace. Ages 16 and up. Low interpretation.

Take digital photographs, documenting the landscape throughout the Irvine Ranch Open Space. The photos will provide a “before” photo that may be used to compare with future conditions, such as pre and post fire and changes in vegetation structure.

Join us every Wednesday night for a fitness-focused hike on the paved Hicks Haul Road. During the summer, 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 an average of 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!

Reviewing the 1-through-5 Difficulty Ratings will help you evaluate your readiness to participate in this level-3 activity on the land.

Please join IRC staff as we convert Dripping Springs ranch road into a single track trail! Activities may include planting native plants along the trail side, weeding out non-native invasive species and watering newly planted plants.  Your effort will help to create a beautiful clear path for people as well as important habitat for wildlife. Spend the day working through grassland, coastal sage scrub, and woodland habitats and then hike to Dripping Springs, a natural water source dripping out of an earthquake fault and then down a gorgeous fern-covered rock face. This unique feature supports many rare plants and animals in the area. No previous experience is needed; however we will be hiking approximately 2.5 miles with heavy tools. Thank you for your continued support of the Irvine Ranch Natural Landmarks!

Please review the Difficulty Ratings before registering. Understanding the 1-through-5 ratings system will help you evaluate your readiness to participate in this level-3 activity on the land.

Join us for a fast-paced, early morning hike in Limestone Canyon. This 8- mile cardio hike, completed in 2 hours, includes a 1100-foot elevation change, and is for experienced, physically fit hikers who enjoy the challenge of multiple steep climbs and descents. Along the way we’ll be rewarded with panoramic views of Orange County, possible wildlife sightings, and the beautiful Limestone canyon and ridge.

You must be an experienced cardio hiker in excellent physical condition to participate in this program. There are no scheduled rest stops on this eight (8) mile cardio hike, and the average four (4) mile per hour pace is extremely difficult over steep terrain in the wilderness setting.

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