A Balloonfish (Diodon holocanthus) hides in a crevice at Isla San Pedro Nolasco. The
Balloonfish only in-
flates itself when it
is harassed. - Isla San Pedro Nolasco, Sea of Cortez, Sonora, Mexico - Depth 35 feet
Isla San Pedro Nolasco - A Sea of Cortez Underwater Photography Gallery