There are unsurpassable scuba diving sites in Cayo Largo where the transparent waters reach significant depths and the bio diversity of marine life has transformed the sea bed into authentic coral gardens, the habitat of numerous species of tropical fish and mollusks.

Numerous coral reef formations surrounding Cayo Largo del Sur extend throughout the entire island group of Los Canarreos, creating an impressive setting open to all those who wish to scuba dive in this tropical underwater world. There are instructors and resources available in all hotels that will meet all needs. Puertosol Cayo Largo Marina has options for guests with diving experience and for those who would like to try it out for the first time.

Gran Caribe Colony International Diving Center, on the Isle of Youth, has been the base of major international events in underwater photography. It provides specialized services in Punta Francés, one of the most outstanding scuba diving sites in the world. The resort also offers courses at different levels and awards certificates that are internationally recognized. Seafaris and marine excursions are organized from here.