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A 2 to 3 hours moderately difficult trek. The skeleton of a Antakarana warrior who died of hunger during the tribal war was found in this cave. The cave has beautiful dropstones and the vegetation of the canyon is quite impressive. Fruit trees such as "wild orange" and the not edible "wild cassava" dominate the track. Crowned lemurs, Sanford's lemurs, birds such as Vasa parrot, flycatcher and Guinea fowl, geckos and lizards can be observed throughout this trek. === Milaintety Cave and Potamochère Cave ===A 3 to 4 hours trek, here and there moderately difficult. The track leads to a cave with impressive dropstone formations. At the exit of the cave is a natural water basin with islets of ferns, which are absolutely worth seeing. The cave is home to three small bat species, such as the Malagasy mouse-eared bat (''Myotis goudoti''), Glen's long-fingered bat (''Miniopterus gleni'') and Manavi long-fingered bat ([[Miniopterus manavi]]). Another resident of the cave is the Nile crocodile. At the entrance of the cave grow Moraceae (''Ficus'') and at the exit reeds and ferns. Whilst trekking one may see snakes, a Crowned lemur and a Guinea fowl.  === The Green River and 1st Canyon ===A moderately difficult 4 to 5 hours walk. The Green River is a mysterious underground river. Its emerald green water crosses the canyon briefly before disappearing again in the rock. There is a possibility to spot Sanford's lemur, Crowned Lemur, Northern sportive lemur, Northern rufous mouse lemur and even the nocturnal Aye-aye in the canyon. Carnivores include the Ring-tailed mongoose, Fossa and Malagasy civet.  === Antsironandoha Cave ===A moderately difficult 3 to 4 hours trek. The underground cave has beautiful dropstone formations. At the entrance of the cave are parrots nests on the outside walls and a forest of Moraceae (''Ficus'') with several species. 6 species of bats from the smallest to the largest size can be observed (Madagascan fruit bat, Madagascan rousette, Madagascar free-tailed bat, Malagasy mouse-eared bat, Glen's long-fingered bat and Manavi long-fingered bat). Birds along the track are the Vasa parrot and the Guinea fowl.  === The Crocodiles Cave and Lake Ampandriamborona ===