Tasman Lake is a glacially-formed proglacial lake nestled within the dramatic landscape of Aoraki/Mount Cook National Park in the Canterbury region of New Zealand's South Island. One of the most visually striking water bodies in the country, the lake began forming in 1974 as the mighty Haupapa/Tasman Glacier retreated, and has grown steadily ever since. Fed directly by meltwater from New Zealand's longest glacier — the 23-kilometre Haupapa/Tasman Glacier — the lake sits at the glacier's terminal face, surrounded by towering moraines that mark the glacier's former extent. The sheer scale of the surrounding alpine environment, with Aoraki/Mount Cook dominating the skyline, makes this one of the most awe-inspiring settings in all of New Zealand.