Antsiranana, also known as Diego Suarez, is a port city in northern Madagascar. It sits on Antsiranana Bay, a vast natural harbor made up of several smaller bays. Offshore, conical Nosy Lonja, or Sugar Loaf Island, is considered sacred by locals. Long, sandy Ramena Beach lies to the northeast. The city’s French colonial architecture is highlighted by the old covered market and the ruins of the Hôtel de la Marine.