The Lonely Planet has published a really good, and extensive, article.
"An English explorer, in search of a crystal skull in the jungles of Belize, may well be the inspiration for Indiana Jones. Follow his legendary adventure...Belize, formerly British Honduras, is a small country crammed with diversity. Ecosystems range from mountainous pine forests to reefs, savannahs to jungles. These support a plethora of flora and fauna, including 540 species of bird and 124 species of mammal. The human population is diverse too."