Including one-fifth of San Diego County, Anza-Borrego is the largest state park in California. Essential California Camping Gear Guide. Eno Hammock (starting at $49.95; amazon.com) ...

Pitch your tent in a scenic campground and sleep among giant boulders after a day of climbing and admiring the beauty of California's Joshua Tree National Park.

Here's what's open: Black Rock Campground: Sites 40-60 and 66-99 are closed from May 25-Sept. 3. All other sites are first-come, first-served until Sept. 4, when they'll be reservation only ...

The Golden State might have more campgrounds than any other in the U.S.—and more visitors, too. From desert to coast to mountains, here are the best uncrowded spots to get a site.