Maroantsetra [maronˈtseʈʂə̥], formerly Louisbourg, is a market town and domestic seaport in Analanjirofo Region, Madagascar, at the northern end of the Bay of Antongil.

Even though it is a small city, Maroantsetra played an important role in the Betsimisaraka history as the unification of this tribe by Ratsimilaho started there.

Throughout the eighteenth century, Maroantsetra also actively participated in the piracy and the attack led collectively by the Betsimisarakas against the islands of Comoros and some east African countries.

[2] It is one of the wettest places in Madagascar due to the trade winds, and receives an average of 138 inches (350 cm) of rain annually.

The trip to Mananara typically takes about three hours and runs twice a week between September and February, though the service is not always reliable due to adverse weather conditions.