(Redirected from Antongila Bay)''Helodranon' Antongila'' (Bay of Antongila), more commonly called 'Antongil Bay' in English, is the largest bay in
Madagascar. It is at the northern end of the east coast of the island and for administrative purposes it is within the autonomous province of
Toamasina. The bay is about 60 km long and 30 km wide, and is formed by the
Masoala peninsula on its eastern side. At the northern end of the bay is the island of
Nosy Mangabe and the town of
Maroantsetra.