Which is the only known species of iguanas that dives into the ocean in search of food?

A clue in the name with Marine relating to the sea or ocean.

Goodboy, I've watched that video footage and held my breath, hoping that the little guy would make it to safety. Happily, on this occasion it did. Incidentally, the snakes are called "racer snakes" Hmmm! I wonder why.

Amazing creatures, watch newly hatched ones trying to get to the safety of sea rocks whilst dodging snakes .