Some are excellent swimmers

The majority of the 40 or more species that make up the Iguanidae family are at least able to swim briefly when necessary. Iguanas frequently come down from trees to feed, drink, sun themselves, and mate, even though they are typically arboreal. Iguanas, after all, often flourish in warm, muggy habitats with big amounts of water. These regions include the tropical rainforests of Central and South America as well as several Caribbean islands. They have developed pretty good swimming abilities as a result of the necessity to often cross rivers and lakes. Even animals that don't swim much naturally, such as rock iguanas, can do so in a pinch to reach these locations since they are equally vulnerable to floods and hurricanes. Iguanas are more adapted to swimming since they are longer and more muscular than smaller lizards. However, they prefer to utilize their long, powerful tails as opposed to their legs to go through the water. Many species, including the green iguana, only flick their tails back and forth and draw their legs close to their body to go through the water like torpedoes.

A few different species of iguanas that reside in the Caribbean spend most of their life near water and frequently go swimming for both exercise and feeding. Compared to animals that are more landlocked, these species often have better, quicker swimming abilities. The marine iguana of the Galápagos Islands spends a lot of time underwater and can dive up to 100 feet below the surface. These water-loving marine iguanas frequently visit the ocean to look for food like algae and seaweed to eat. The marine iguana must warm up in the sun after swimming since it has chilly blood. Their dark coloring enhances their capacity to reabsorb heat, which makes them well-suited for rewarming. They can stay underwater for up to 30 minutes, however, they usually limit their underwater explorations to a few minutes.