Tucked under Cape Maeda, just about 1 hour away from Naha, Okinawa's luminous Blue Cave is one of the island's most popular snorkeling and diving spots. When light hits the clear water and white floor of the cave the entire space seems to glow a beautiful turquoise color! Home to plenty of friendly fish and surrounded by coral forests, booking a tour is the easiest way for those unfamiliar with Okinawa to explore this natural wonder.