Lalolalo is Uvea's most spectacular volcanic crater lake. It forms an almost perfect circle and its water is ink-black. The lake is surrounded by dense jungle, but there is a walking path, so it is easily reached.

Lake Lalolalo is about 80m deep and surrounded by 30 m high rocky cliffs.

According to rumors, the American forces dumped equipment into the lake at the end of WWII.

Lake Lalolalo is about 7 km southwest of Matā'utu, between the villages of Mala'etoli and Ahoa. A small lake, Lake Lano, lies just to the northwest.