Yes, camping is allowed in Biscayne National Park, but it is limited to two designated island campgrounds: Elliott Key and Boca Chita Key. These campgrounds are accessible only by boat and offer a more primitive camping experience, with no running water or electricity. However, restrooms are available on both Elliott Key and Boca Chita Key. There are picnic tables and grills available at both campgrounds. Boca Chita Key also has a harbor and a historic lighthouse. Keep in mind that these campgrounds operate on a first-come, first-served basis, and there are no reservations available. Be prepared for a more remote and primitive camping experience when visiting Biscayne National Park.