Luis Miguel Gutierrez Bringas, a sea-diving tour operator, captured video of a massive sunfish in its natural habitat off the coast of Mexico.

A stunning video of a woman swimming next to a giant sunfish off the coast of Cabo San Lucas, Mexico, has gone viral, leaving people amazed.

Ocean sunfish, or Mola molas, are the heaviest bony fishes on the planet and can weigh nearly 5,000 pounds. (Sharks and rays, which can be heavier, do not have bones and are not in this category).