The Manuel Antonio National Park was established as a National Park in 1972 by the Costa Rican government in an effort to preserve the area’s natural environment. Manuel Antonio is the smallest park in Costa Rica; however it has more visitors than any other. The high number of visitors has forced park officials to restrict the number of visitors to 600 on weekdays and 800 on weekends. This may sound like a lot, but they tend to fill up very quickly. So if you want to go we recommend getting there early. Despite its small size, the park has an incredible amount of biodiversity within it. Over 200 species of mammals, birds, insects and reptiles make up the area's wildlife population. With expert guides, you can learn all about the different creatures that call this small patch of land home. Among these are raccoons, sloths, white-faced, howler and Titi monkeys. You can also see different types of birds such as pelicans, parrots, yellow crowned night heron and toucans. There are also iguanas, lizards, snakes and thousands of varieties of insects.