Some iguanas are excellent swimmers
While many iguanas are content to lounge on dry land or cling to shady tree limbs, the marine iguana of the Galapagos Islands spends a great deal of time under the sea. As seen in this fascinating video below, the creature uses its excellent swimming skills to forage for red and green algae:
Because the iguana is a cold-blooded reptile that requires warmth to survive, you might wonder if swimming in the chilly ocean would poses any problems. However, thanks to its dark coloration, the marine iguana has no trouble soaking up the sun's rays. Still, it only takes a few minutes before an iguana's muscles start seizing up from chill, which is why they limit their underwater adventures to around 10 minutes max.