Looking across Lake Wanaka to Glendhu Bay. br/br/Glendhu Bay is a small settlement on the shores of Lake Wanaka, a short 10 minute drive west of Wanaka township, enroute to Treble Cone skifield and Mount Aspiring National Park. It boast a very popular holiday park right on the shoreline of the lake.br/br/Lake Wanaka lies at the heart of the Otago Lakes in the lower South Island of New Zealand. At an altitude of 300 metres it is New Zealand's fourth largest lake covering an area of 192 square km, and estimated to be more than 300m deep. The lake lies in a u-shaped valley formed by glacial erosion during the last ice age, more than 10,000 years ago. It is fed by the Matukituki and Makarora Rivers, and is the source of the Clutha River. Nearby Lake Hāwea lies in a parallel valley carved by a neighbouring glacier eight kilometres to the east.