On this Dive Travel adventure we visit three of the four volcanic islands making up the Revillagigedo Archipelago, 250 miles off the southern coast of Cabo San Lucas, Mexico, in the Pacific Ocean. Its here we encounter the magnificent Giant Pacific Manta rays, (Manta Birostris), the largest of the rays. These beautiful mantas love swimming and interacting with humans as much as humans love the interaction with them. These gentle, graceful giants of the sea have wing spans up to 7.6 m or 25 feet across and can weigh approximately 2,300 kg (5000 lbs.).