Big Channel is a drift dive located off the coast of San Andres Island in Colombia. It is a popular dive site for experienced divers due to its strong currents, deep walls, and abundant marine life. Big Channel is home to a variety of marine life, including: Sharks: hammerhead sharks, Caribbean reef sharks, nurse sharks Rays: eagle rays, manta rays, stingrays Turtles: green sea turtles, hawksbill sea turtles Dolphins Fish: angelfish, butterflyfish, parrotfish, snapper, tuna Crustaceans: lobsters, shrimp Corals: brain coral, elkhorn coral, staghorn coral