Lake Chilwa, Malawi's second-largest lake, is notably shallow, with an average depth of just a few meters, and its size fluctuates significantly with seasonal rainfall and drought conditions. Historically, it was much larger and deeper, extending nearly to the foothills of Mount Mulanje in the 19th century. Designated a Ramsar Wetland of International Importance in 1997, the lake is a critical habitat for large populations of waterfowl and other bird species, making it a notable destination for bird-watching. The lake also features inhabited islands like Chisi and Thongwe, where communities maintain traditional lifestyles, though their remoteness makes them rarely visited. Unique cultural sites and mobile stilted fishing villages add to the lake's distinctive character.