If your iguana manages to go up a tree, then you will need to work hard to get it down, and that is where the ladder comes in handy. If you do not have access to a ladder or the trees in your yard are extremely tall, use extreme caution when letting your iguana anywhere near trees. The second biggest worry about iguanas that are free roaming outdoors is that they can get into something that is poisonous or unsafe. Do not leave the iguana unsupervised near a pool or a pond. Iguanas can swim, but just because they can get into the water doesn't mean that they can get out, especially if they get tired from the swimming.
Many plants are poisonous to animals.
If you are not absolutely sure what plants you have in your yard, keep your iguana away from anything other than grass. If you know what plants you have, but you don't know if they are poisonous, then keep your iguana away. Visit our Toxic Plants page to find out about poisonous plants, but the plants listed may not include what is in your yard, so play it safe and don't let your iguana wander into those areas. Also poisonous to iguanas are pesticides and herbicides. If you are not certain that your yard is free of these chemicals, then do not let your iguana free roam.