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San Bernardino/Crab Flats

San Bernardino Crab Flats is a popular hiking destination located in Running Springs, California. The area is known for its scenic views of the San Bernardino Mountains and its abundance of wildflowers. The trailhead is located at the intersection of Highway 18 and Crab Flats Road. The trail is a moderate 4.5 mile loop that takes hikers through a variety of terrain, including meadows, forests, and rocky outcroppings. Along the way, hikers can enjoy views of the San Bernardino National Forest, the San Gorgonio Wilderness, and the San Jacinto Mountains. The trail is also home to a variety of wildlife, including deer, coyotes, and birds.

Amenities

- Policies

• Pets Welcome
• Tent Camping Allowed

- Other Amenities & Services

• Pit Toilets

- Recreation Nearby (within 10 miles)

• ATV Riding

- Facility

• Type (National Forest)

- On-Site Rentals

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- Sites

• Spaces Available (28)
• Dirt Sites (28)
• No Hookups (28)
• Fire Rings

User Reviews

Erik Orejel

September 02, 2025

Small campground, but surprisingly spacious. It's tucked a bit farther back into the mountains, which is honestly part of the fun. You don’t need a 4x4 vehicle, but high clearance is definitely recommended. I wouldn’t bring a Prius, Camry, Civic, or anything low to the ground, there are a few rough spots where you could easily get stuck or damage your car. It’s far removed from the hustle of everyday life, quiet, peaceful, and surrounded by nature. Lots of shade and plenty of space between sites. Vault toilets are available and decent, depending on who used them last. There’s no water nearby, so be sure to bring plenty. Also, there’s no trash service, so pack out what you pack in. As expected, no showers. (It’s camping 😁) The area is dog-friendly and generally quiet, except for one issue (more on that below). We did have some wasps show up every time we were cooking or had water out, but they didn’t sting or cause any problems. Just something to be aware of. Lots of birds and wildlife around, and when it's quiet, the sound of the wind moving through the trees is absolutely beautiful. There aren’t many hiking trails directly at the campground, which might be a downside for some. However, Green Valley Lake is not far away and makes for a great trip to and from the campsite. There’s swimming, fishing, they have boat rentals, or you can just relax by the water. If you do swim or fish, theirs is a small fee since the lake is privately owned. Cool owners.There are also a couple of mellow, local restaurants nearby if you want a break from cooking. Very chill-mellow vibe type of place. The Downside: Off-Road Vehicles Unfortunately, the campground sits right next to an off-highway vehicle trail (OHV)So, depending on the crowd, you will hear engines and loud music, especially during weekends or holidays. During our stay, there was a large group (20+ people) with several off-road carts and quads. They started early, around 7 a.m. blasting music and running engines throughout the day. At night, they were doing donuts near the entrance, kicking up dust that blew directly into campsites 1 and 2 (where we stayed). A couple of riders even kept on driving through out the campsite and in between the tent spots without any regards for others. My neighbor eventually asked them to slow down near the sites, and they did, for a bit. But it didn’t last. They also ignored the numerous "No Campfires" and "Fire Danger High" signs and still started a fire, showing little concern for safety or other campers. Despite the off-road noise and that one inconsiderate group, we still had a good time. Just be aware of the setting and know what to expect.Bring your own water, Pack out your trash, no fires unless explicitly allowed, be prepared for potential dust/noise from off-road vehicles, enjoy the nature, peace, and shade when it's quiet.

Jeannine Laupsa

August 27, 2025

It’s definitely outdoor living. Toilet only. And the road to get there is very rough. Like you shouldn’t go if you have a Prius. But we had a great time.

Roger Lobbezoo

August 16, 2025

Very secluded and off the map. Be warned that there are 4 miles of unpaved road to get to the campsite, 4WD and high clearance vehicles only! Saw someone in a Tesla totally get stuck!!! No RVs, sedans or non-4WD vehicles!!! No water, no waste, toilets only!!! Campsite have picnic tables & fire pits. Check fire regulations before heading out....

Melany Carmona

July 13, 2025

Beautiful and well maintained. The only bad part to complain was the rude camping neighbors, other than that a wonderful experience.

Preston Treadwell

August 11, 2024

My son and I stayed here the last week in June. The weather was mid yo low 80s. I stayed at campsite 1 and there was only one other group there on the entire campsite. The campsite does require a high clearance vehicle to get there but most stock SUVs should be fine. My son and I tent camped for two days. The site was big and had plenty of shade. The bathroom was a very short walk from our site and decently maintained. The site included water and a fire pit, but due to fires in the area/ weather they were both restricted. My son and I hiked to the top of a tall rock in the site and watched the sunset which only took maybe 15/20 minutes. There are several trails located close by to drive on and explore. We also used the private lake about 20 minutes from camp. For about $40 for me and my son, we rented a row boat and fished for an hour. The $40 allowed us to also fish from the shore. Unfortunately didn't catch anything but it was a good way to relax and enjoy lunch while our lines were in the water. Overall I think the site was nice. I prefer less people om the site when camping so this was perfect. I think the time of the season and the dirt road to the site helped limit the traffic.

Map for San Bernardino/Crab Flats

Contact information