Description from YouTube:
The Sturm’s adventure in Playa del Carmen Mexico in the middle of June 2014. One hour out into the open ocean we took the jump of a lifetime and swam with about 7 whale sharks and a manta ray. The biggest whale shark was about 32 feet long and the manta ray’s wing span was 13 feet! 4 family members, 3 hours in the water, 2 gopro hero cameras and 1 experience we will never forget.