The Ankarana Special Reserve has three entrances. The main entrance in the east close to Mahamasina. From here you get to the most visited cave: Grotte des Chauve-Souris (bat cave).
The reserve was created in 1956 and is popular for the terrific tsingy, caves, and underground rivers. Schedule a minimum stay of three nights to get an idea of this stunning place.
The dry season from April to October is the best time to travel to the north. Usually, it's very hot at midday. Avoid the rainy season from December to March. Tropical storms can occur and it is even hotter.