Pristine waters and unforgettable nature trails at this Miami national park are perfect for the whole family. (©Alexander Shalamov/Dreamstime)
In the crystalline waters of this marine park, observe the coral reefs, sponges, exotic fish and sea animals. The park’s 173,000 acres extend almost to the southern tip of Key Biscayne, close to downtown Miami. Snorkeling and diving excursions depart regularly. Visitor center open 9 am-5 pm daily.