Lake Clearwater is in the Ashburton District of the South Island of New Zealand.

The outlet feeds into the south branch of the Ashburton River / Hakatere.

The lake borders, and is proposed to be included in, the Hakatere Conservation Park which covers nearly 60,000 hectares of rugged mountain country, tussocklands, beech forest and sparkling clear rivers and lakes between the Rakaia and Rangitata Rivers.

No dogs or motor powered craft are permitted on the lake as it is a wildlife reserve, however strong and consistent winds funnelled off the bounding mountains make it an ideal lake for windsurfing and kitesurfing.

The adjacent, and smaller, Lake Camp is used by motor powered water craft.