The Lake Pukaki in New Zealand is a stunning alpine lake located in the Mackenzie Basin of the South Island. It is the largest of three roughly parallel lakes running north-south along the northern edge of the Mackenzie Basin. The lake is a deep blue colour due to
From Wikipedia
Lake Pukaki is the largest of three roughly parallel alpine lakes running north–south along the northern edge of the Mackenzie Basin on New Zealand's South Island. The others are Lakes Tekapo and Ōhau. All three lakes were formed when the terminal moraines of receding glaciers blocked their respective valleys, forming moraine-dammed lakes. The Alps2Ocean mountain bike trail follows the edge of Lake Pukaki for part of its length.