The Mulanje Massif, also known as Mount Mulanje, is a large inselberg in southern Malawi.
Sapitwa Peak, the highest point on the massif at 3,002 m, is the highest point in Malawi. …
The Massif is popular for hiking and climbing, and has several mountain huts scattered across it which are maintained by the Malawi Mountain Club and the Malawi Forestry Department.

If you want to know more, the Mountain Club posted a detailed document with options for hiking from 1 – 5 days.