Torsuut Tunoq is a sound on the southeastern coast of Greenland. It is an inner waterway of the North Atlantic. Settlement During winter pack ice and small icebergs pushed forth by the East Greenland Current ram against the northeastern coast, blocking the narrow Ikaasaartik Strait and facilitating the freeze of the much wider Torsuut Tunoq sound. The tidewater Apusiaajik Glacier drains into the sound in its northernmost part.
Kulusuk is the only settlement in the area, located on an island of the same name on the southern coast of the sound. During winter on Saturdays, the children of Kulusuk play ball on the ice, several hundred meters offshore on the surface of the frozen Torsuut Tunoq sound.
The inhabitants of Kulusuk use snowmobiles and traditional dogsleds as additional means of transport during wintertime−families arriving at the Kulusuk Airport are ferried to the settlement on both, using the frozen waterway. In the summer, the cargo boats of Royal Arctic Line connect Kulusuk and Tasiilaq, providing an ad-hoc alternative for the helicopter flights of Air Greenland. Polar cruises bound for, or returning from the coastal voyages in the Kangertittivaq fjord and the shores of Northeast Greenland National Park often visit the area on their way from/to Tasiilaq, albeit without anchoring in the harbour due to the shallowness of the coastal waters in the sound.