They like to bask in sun during the day break to get warmth to keep their body at a higher temperature. So you should be able to care of these primary needs when you plan to construct a shelter for them. You can consider some of possibilities for iguana enclosures as discussed below: One of the options is to make a shelter for iguana in a closet. The iguanas mostly live on the nature and can adjust easily with their surroundings. Some species are living in deserts while others live in rainforest. Even a few species have their dwelling in sea. These are referred as marine iguanas. The most common variety of them is giant green iguanas; this species is mostly found in Mexico and South America particularly in Brazil. Shelter for Protection: You cannot use just any type of cage to keep baby iguana. However, it is not so important what design or material you use for making their shelter. The interior of their cage is a crucial factor. There should be something inside that will make the baby iguana warm and comfortable during the night. How to prepare an Iguana Nest: For carrying out the reproduction of iguana smoothly, both male and female iguanas are to be put together in their mating and breeding season. There should be proper size of the group and ratio of male and females. For one male, you can keep one or more females. It is better to maintain the number of male iguanas smaller than females; otherwise males may be killed fighting with each other during mating. The nose abrasions: When iguana is suffering from nose abrasions the reptile tries many times to escape and gets the nose scraped or scratched with enclosures. The nose scrapes are resulted from wires, plastic or glass used for their enclosure of cages. If these abrasions are not treated, there is formation of ulcerian sostrum, infection with bacteria and disfiguring of nose. They can spend only a short time in cold water of sea when they dive in search of their algae food. They normally swim in the places in islands where the water is not deep. After swimming, they normally bask in the sun to warm up their bodies. In cold days they almost become immobile and easily fall prey to the marauders.