Lake Sumner, known as Hoka Kura in Māori, is a highland lake situated 100 km (62 mi) northwest of Christchurch in the North Canterbury Region of New Zealand's South Island. Covering an area of 1,373 ha and a maximum depth of 135 m (443 ft), the lake is located in the Lake Sumner Forest Park and on the main stem of the Hurunui River. Several other lakes such as Loch Katrine, Lake Sheppard, Lake Taylor and Lake Mason also lie within the park.