Being eye to eye with the biggest fish on Planet Earth is scary. But this magnificent encounter is life changing. All you need is a snorkel and courage.
Whale sharks congregate offshore Cancun, Mexico from May-September. They dine on a buffet of fish eggs and plankton.
Whale sharks are light grey, white spotted and often grow to be 40 feet long. Scientists have tracked them living at depths of up to 2,300-feet.