No Apes, brown howler monkey, locally called baboon. Monkey River near Placencia (contact firstname.lastname@example.org for kayaking/camping trips), New River trip to Lamanai, Crooked Tree are just a few with easy to access with regulary scheduled tours. Moderately priced jungle with a roof, meals and place to shower-Che Chem Ha, where the cave of the same name is, in Cayo. Their guides can take you into deeper bush and on overnight camping/kayaking too. Plenty other similiar places all over the country.