In the southwest of Providenciales, this national park encompasses the tranquil Chalk Sound lagoon, a large expanse of shallow water connected to the ocean by a small channel. Check out the fringe of jagged limestone, called ironshore, along the shorelines of the lagoon and its small islets. You can rent a car and explore scenic Chalk Sound Drive, or you can stop at Las Brisas Restaurant to rent kayaks for a paddling adventure. See if you can spot stingrays and small sharks finning through the water, or the local rock iguanas foraging on the islands.