This 5-mile (round-trip) hike in Orange County's Aliso and Wood Canyons Wilderness Park leads to Dripping Cave in Laguna Nigel.

It’s just a 1.5-mile (round-trip) hike on an out-and-back trail to reach Vanalden Cave in the Santa Monica Mountains, an impressively large sandstone chamber.

If exploring a cave is spelunking, then exploring a cave by kayak is … spelayaking?! This unique cave-kayaking adventure at Channel Islands National Park is a wonderful way to get an in-depth perspective of the marvelous caves here.

Gaviota State Park is home to the 3-mile out-and-back Gaviota Wind Caves Trail, with over 600 feet in elevation gain, unique topography, seasonal wildflowers, and incredible ocean views.

Sunny Jim Cave is anything but sunny. It’s what you want in a cave—cool and dark—and it has a literary connection. It’s also the only sea cave in La Jolla that can be accessed by land.