Lake Malawi National Park is a UNESCO World Heritage Site covering the southern tip of Lake Malawi, including the Nankumba Peninsula on which Cape Maclear sits. It is the first freshwater protected area to receive World Heritage listing, recognised for the extraordinary diversity of cichlid fish that have evolved here — Lake Malawi alone contains roughly a third of all known cichlid species in the world.
In practice, the park is a backdrop rather than a separate destination — there are no formal gates or entry tickets if you are simply staying in Chembe village. Most snorkelling and diving in the lake takes place inside the park's boundaries, and the granite hills behind the beach are part of the protected area. A small visitor centre at Chembe explains the geology and the cichlid evolution story.