ivittuut , (old spelling ivigtût) was a municipality (from 1951 until 2008), located on the coast of arsuk fjord in southern greenland. with an area of just 100 km² (600 km² according to other sources), it was the smallest municipality of greenland, bordering on the former narsaq municipality in the north, east, and south, and on the west by the labrador sea. it has been integrated into the new sermersooq municipality. due its small size, the land of the municipality is all ice free, as it does not extend inward to the ice sheet of greenland.