|Location||Mount Cook National Park, South Island|
|Basin countries||New Zealand|
|Surface area||1.95 km² (1993)|
|Max. depth||>100 m|
|Surface elevation||727 m (1993)|
In the early 1970s, there were several small meltwater ponds on the Tasman Glacier. By 1990, these ponds had merged into Tasman Lake.
Tasman Lake has quickened the retreat of the Tasman Glacier. Initially it did so by undercutting the cliff at the end of the glacier, causing parts of the cliff to fall into the lake. Now, however, a 50–60 m apron of submerged glacial ice projects out from the cliff, and icebergs periodically break off the apron and float away down the lake. Because more of the glacier is now in contact with the water, its rate of retreat has increased. By 2008 the lake was 7 km long, 2 km wide and 245m deep. It is expected to grow to a maximum length of about 16 km within the next one or two decades.
See also 
- "Place Name Detail: Tasman Lake". New Zealand Geographic Placenames Database. Land Information New Zealand. Retrieved 18 April 2008.
- Hochstein, M.P.; Claridge, D.; Henrys, S.A.; Pyne, A.; Nobes, D.C. and Leary, S.F. (1995). Downwasting of the Tasman Glacier, South Island, New Zealand: changes in the terminus region between 1971 and 1993, New Zealand Journal of Geology and Geophysics 38 (1), 1-16.
- "Tasman Glacier retreat extreme". Massey University. 2008-04-23. Retrieved 2008-04-24.
- Temple, Philip (2009-12-11). "Deniers don't have a rapidly melting glacier to stand on". The New Zealand Herald. Retrieved 2010-02-23.
- New Zealand Department of Conservation - Aoraki/Mount Cook National Park