Lonely Planet review
There’s a shady developed campground close to the park headquarters, with picnic benches, grills, flushing toilets and cold-water showers. Playa Naranjo has pit toilets and showers, but no potable water – bring your own, and don't expect complete solitude. People do love to camp there, and everyone shares one sandy flat basin, only moderately sheltered from gusty wind by thin trees.
Other camping areas in the park are undeveloped. There’s a 25-person, two-night maximum for camping at Playa Naranjo. There’s also a small campsite with pit toilets and showers near the ranger station in the Sector Murciélago, though you’ll have to carry in your own food and water.