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edits
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→Circuits (tours) in the western part of the park
A 4 to 5 hours moderately difficult trek to a cave with dropstone formations and an underground river. The perennial lake is home to water birds, such as Humblot's heron and Madagascan pond heron. The endemic blind fish (''Glossogobius ankaranensis'') and Nile crocodile are the highlights of this walk. At the entrance of the cave grows marsh vegetation (reed) and a forest of Moraceae (''Ficus'').<br>
Guide: 35,000 Ariary, park warden: 25,000 Ariary, porter: 10,000 Ariary (prices 2010) <br><br>
