Because the park is primarily underwater, the only way to truly experience it is with snorkel or scuba gear. Beneath the surface of Biscayne National Park, the aquatic universe pulses with multicolored life: abounding bright parrotfish and angelfish, gently rocking sea fans, and coral labyrinths. Afterward, take a picnic out to Elliott Key and taste the crisp salt air blowing off the Atlantic. Or head to Boca Chita, an intriguing island that was once the private playground of wealthy yachters.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.