Mulanje Massif. The Mulanje Massif, also known as Mount Mulanje, is a large inselberg and World Heritage Site in southern Malawi. Sapitwa Peak, the highest point on the massif at 3,002??m, is the highest point in Malawi. It lies 65??km east of Blantyre, rising sharply from the surrounding plains of Phalombe and the Mulanje district. It forms part of a proposed ecoregion, to be called the South East Africa Montane Archipelago (SEAMA).