Lake Dunstan is a medium-sized hydroelectric reservoir nestled in the heart of Central Otago, New Zealand, formed in 1993 following the completion of the Clyde Dam. The lake stretches approximately 18.5 kilometres through the Cromwell Gorge before dividing into three distinct arms — the Clutha Arm extending roughly 17 km upstream, the Kawarau Arm reaching about 11 km, and the Dunstan Arm. With a surface area of 26.4 km² and a mean depth of 16.3 metres, it is a substantial fishery set against the dramatic backdrop of Central Otago's tawny schist landscapes, vineyards, and fruit orchards. The old town of Cromwell now lies submerged beneath the lake's surface, and a new town centre was rebuilt on a terrace overlooking the original site. Situated just 30 minutes from Wanaka, Lake Dunstan is a highly accessible and productive fishery that draws anglers from across New Zealand and abroad.