Green Iguana is common in lowlands and warmer areas of Costa Rica. The native range of the Green Iguana extends from southern Mexico to central Brazil, Paraguay, and Bolovia and the Caribbean specifically Grenada, Curacao, Trinidad and Tobago, St Lucia, St. Vincent and Utila. They have been introduced to Grand Cayman, Puerto Rico, Texas, Florida, Hawaii, and the Virgin Islands. Though the species is not native to Martinique, a small wild colony of released or escaped Green Iguanas endures at historic Fort Saint Louis.
Green Iguanas are diurnal, arboreal, and are often found near water. Agile climbers, Iguana iguana can fall up to 50 feet (15 m) and land unhurt (iguanas use their hind leg claws to clasp leaves and branches to break a fall). During cold, wet weather, green iguanas prefer to stay on the ground for greater warmth.