The two most common species of Iguana are the Green Iguana and the Marine Iguana. As the name suggests, the marine iguana is as at home in the water as they are at home. However, both species are classified as land animals, they both exceptional swimmers, even though the marine iguana is the only water-based iguana. Both species are cold-blooded and will live close to cold water. However, they need heat to produce energy, so they will only live in warmer climates.
At first glance, iguanas do not look like they could swim. However, their tails are very powerful and capable of driving them through the water in the same way that humans use their legs. So, back to the question; can iguanas swim? The answer is a resounding yes, they can.