First-Time Visitor’s Guide
With more than 15 parks and nearly 38,000 acres to explore, the Nature Reserve of Orange County is a million different adventures just waiting to happen. This is the perfect place to start—find trail suggestions, get the lay of the land, see what wildlife you might encounter, and more.
It surely won’t be your only visit to the NROC, but it will be your only first time. Let us give you some guidance.
Every park has its own vibe, every trail offers a unique journey, and the breadth of landscapes the Reserve protects is truly breathtaking. There are family-friendly parks with playgrounds and picnic tables, backcountry areas that feel wholly remote, and bluffside spots that overlook the ocean. You can stroll through coastal sage scrub, hike into canyons, and follow trails right down to the beach.
Whether you’re here to hike, run, ride horseback, watch wildlife, or simply soak up the views, there’s something for every kind of explorer. Just remember—Mother Nature lives here, we’re simply guests, so be sure to recreate responsibly.
The NROC’s Most Popular Trails
Hitting the trails is one of the best ways to experience the Reserve, and they range in length, elevation, landscape, and strenuousness.


Here are a few of the most popular trails, so you can find one that suits your sense of adventure.
Back Bay Loop Trail: This well-signed 10.5-mile loop in Newport Beach winds around Upper Newport Bay, overlooking the estuary and taking you right down into the marshland. With only 377 feet in elevation gain, it’s a relatively steady, easy trek, but it’s mostly treeless, so be sure to bring sunscreen!
Bommer Ridge to Lizard Trail to Laurel Ridge Loop: Just over 4.5 miles long, this moderate loop through Laguna Canyon Wilderness Park starts with ocean and canyon views before winding down through rolling hills. It’s a moderate trek with some steeper climbs and is extremely popular with mountain bikers.
Top of the World via Canyon Acres Trail: This Laguna Beach trail in Aliso and Wood Canyons Wilderness Park offers a short—2.4 miles—but steep and challenging climb. Hike through coastal sage scrub to a panoramic viewpoint that will serve up a Catalina Island sighting on a clear day.
Peters Canyon Loop Trail: Hikers, bikers, runners, and horseback riders flock to this moderate 5.9-mile trail in Peters Canyon Regional Park. With a mix of flat stretches, climbs (about 675 feet gain in elevation), and panoramic views, it’s no wonder this trail is tops in popularity.
Red Tail and Rattlesnake Loop: Head to Crystal Cove State Park for this moderate, nearly 5-mile trail—with a 751-foot elevation gain—that starts at Pacific Ridge Trailhead with sweeping ocean views before single-track trekking through secluded coastal sage scrub.
Laguna Coast Wilderness Park Loop: This moderate 6.2-mile hike in Laguna Coast Wilderness Park has a little bit of everything—coastal sage scrub, oak woodlands, and, in the spring, swaths of wildflowers. A steep climb (1,036 feet elevation gain) pays off with panoramic ocean views.
Bommer Canyon Loop Trail: Explore the rolling San Joaquin Hills on this serene 4.6-mile trail in the City of Irvine Open Space Preserve South. There’s little shade but plenty of stunning scenery, and, with 898 feet in elevation gain, a bit of a challenging climb.
El Moro Canyon Loop Trail: Another moderate trek in Crystal Cove State Park, this one is a true stunner. The nearly 5-mile trail takes you through El Moro Canyon, and 810 feet of elevation gain gets you some of the park’s most incredible coastline views. It’s also one of the few Reserve trails with beach access, so you can reward yourself with an ocean swim after.
Buck Gully Trail: This out-and-in trek is hidden in a Newport Beach neighborhood, offering 4.4 miles of often shaded, creekside trail. Its gentle grades—only a 449-foot elevation gain—and easy-to-follow path make it pretty family-friendly. Mountain bikers take note: it’s a one-way trail.
Coal Canyon Trail: More experienced trail folk will like this one—10 miles through the Coal Canyon Ecological Reserve that start near the 91 freeway. An elevation gain of 1,840 feet rewards you with the dramatic sandstone cliffs of Orange County’s “Mini Moab.” It’s a mostly exposed trek, so save it for a cool day!
Bommer Canyon to Crystal Cove: This strenuous route is for those who want to go the distance—14 miles with 2,200 feet of elevation gain that offer a true mountains-to-the-sea experience, from City of Irvine Open Space Preserve South to Crystal Cove State Park.


Santiago Creek Trail and Barham Ridge: Mountain bikers love this moderate 6-mile loop in Santiago Oaks Regional Park in Orange, but experienced hikers and horseback riders like the steep (833-foot elevation gain) inclines too. There’s very little shade, but there is an epic lookout with great views of the city.
Quail Hill Loop Trail: This short, relatively flat (147-foot elevation gain) route offers 2 easy miles through the City of Irvine’s Open Space Preserve South—it’s family-friendly and great for beginners. You’ll see rolling grasslands and sweeping views of the city. It’s also one of the Reserve’s few dog-friendly areas, just remember to keep your furry friends leashed!
Barbara’s Lake Loop Trail: A moderate 2.9-mile trek through Laguna Coast Wilderness Park, this lives up to its name by leading you, over mostly flat terrain, right to Barbara’s Lake. A small hill (328-foot elevation gain) adds a slight challenge, but blooming wildflowers in the spring make it more than worthwhile.
Guided Activities & Wilderness Access Days
Some areas of the NROC are reserved only for wildlife, but you can explore those, too—here’s how.
Much of the Reserve’s 38,000 acres are always open to the public, but there are some truly special parts that we don’t want disturbed on a daily basis. But that doesn’t mean you can’t behold their grandeur! You just have to do a bit more planning, by registering for a docent-led activity or marking your calendar with the area’s Wilderness Access Days, when self-guided exploration of typically restricted areas is allowed. Here are a few of those spectacular trails. They’re not typically open to the public, but when they are, you won’t want to miss them.


The Sinks: Trekking 10 miles, with steep inclines and descents, through the Limestone Canyon Nature Preserve in the Irvine Ranch Open Space will reward experienced hikers with a spectacular view of The Sinks—dramatic sandstone cliffs that are Orange County’s miniature version of the Grand Canyon.
Fremont Canyon to Mini Moab: This out-and-back distance hike—14 miles—with steep climbs and spectacular views is for experienced hikers. It starts in the Irvine Ranch Open Space and ends up in the Coal Canyon Ecological Center, to the sandstone ridgeline known as “Mini Moab.”
Borrego Canyon Trail to Red Rock Canyon: A relatively easy 4-mile trail, this Whiting Ranch Wilderness Park trek gently climbs through Borrego Canyon before leading you to Red Rock Canyon—truly awe-inspiring formations of smooth, red rock cliffs.
Weir Canyon Trail: This 3.7-mile loop will take you through Santiago Oaks Regional Park in Orange, offering spectacular views of the Anaheim Hills. Plan your visit for the spring, and you’ll be surrounded by some of Southern California’s most vibrant wildflowers.
Orchard Hills Loop Trail: Head to City of Irvine Open Space Preserve North for this relatively easy 2.9-mile loop that winds through the hills and near the agricultural orchards that the Orchard Hills planned community is named for.
Sign up for docent lead hikes or access managed open space at Let’sGoOutside.com
The Nature Reserve of Orange County—stewarded wildlands from the mountains to the sea.
Across Orange County are 38,000 acres of permanently protected natural land, and it’s nothing short of epic. There are coastal wetlands, rolling grasslands, and soaring bluffs, all of which are home to a thriving ecosystem of plants and animals. Come get awed.
Aliso & Wood Canyons Wilderness Park
Experience exhilarating ocean views and peaceful creekside trails in these 4,500 acres.
Buck Gully Reserve
More than 250 acres of lush wilderness tucked into a Newport Beach neighborhood.
Coal Canyon Ecological Reserve
These 1,000 acres of grasslands and coastal sage scrub are a favorite among migrating deer.
Crystal Cove State Park
Where more than three miles of majestic coastline meet 2,400 acres of backcountry wilderness.
City of Irvine Open Space Preserve North
Features one of Orange County's best vista points: Loma Ridge Peak.
City of Irvine Open Space Preserve South
Enjoy an immersive trail system in 4,000 acres of pristine natural landscapes.
Irvine Ranch Open Space
These 25,000 acres are so epic they've been designated a National Natural Landmark.
Irvine Regional Park
Immersive nature paired with traditional park activities—playgrounds, picnic areas, a zoo, and more.
Laguna Coast Wilderness Park
Expansive vistas and 40 miles of trails in 7,000 acres of Laguna's coastal canyons.
Peters Canyon Regional Park
Rolling hills, a glittering reservoir, panoramic views, and plenty of trails in the city of Orange.
Santiago Oaks Regional Park
A nature lover's nirvana: nearly 1,300 blissfully secluded acres alongside Santiago Creek.
Talbert Regional Park
Nearly 3 miles of trails wind through 200 acres of scenic Costa Mesa landscapes.
UC Irvine Ecological Preserve
More than 60 acres next to UC Irvine's campus make up a stunning natural site that supports crucial research.
Upper Newport Bay Ecological Reserve
This coastal wetland, one of SoCal's largest, is a bird-watching paradise.
Upper Newport Bay Nature Preserve
Hike the bluffs around the Bay then visit the state-of-the-art interpretive center.
Whiting Ranch Wilderness Park
These 25,000 acres in Lake Forest are home to the iconic Red Rock Canyon.
Activities Galore
There’s no shortage of ways to enjoy the Nature Reserve of Orange County. Mountain biking, hiking, bird watching, and more—there’s a park that’s perfect for however you want to move through nature. Support your local park by tagging us at #VisitNROC.


Every park in the Reserve offers trails for running, hiking, and mountain biking—so consider location convenience, trail length and difficulty, and the type of scenery you want to explore before choosing where to hit the trail. If you want to bring your dog along, your choices are limited, but you do have some options, just be sure to keep them leashed (learn more about why most of the Reserve is dog-free). Many of the parks also have equestrian-friendly trails, so saddle up and come on out.
Hundreds of wildlife species make their home on the Reserve, and it’s an incredible place to get a glimpse of some of Southern California’s noteworthy native animals. Birders flock to Talbert Regional Park and City of Irvine Open Space Preserve, but take a look at your list of lifers, and choose accordingly. You’ll encounter wildlife at every park, so choose your destination by habitat depending on what you want to see. Kayaking, fishing, and even camping are welcome on the Reserve. And there are always fun guided activities taking place, from interpretive nature walks to yoga.
See some of SoCal's most noteworthy wildlife.
The Reserve is one of the planet's most biodiverse areas, and wildlife is everywhere if you keep your eyes and ears open. Look up to spot red-shouldered hawks soaring overhead or listen for the chatter of cactus wrens and California gnatcatchers in the coastal sage scrub. Mule deer and coyotes roam the hillsides, while bobcats and the elusive mountain lion remind us these spaces are truly wild. Every visit offers a chance to cross paths with the incredible creatures—from tiny pollinators to captivating predators—that call this landscape home.
Get to Know NROC's Wildlife