premise: Shortcut Island is a crescent-shaped island 0.4 mi long, with three prominent indentations of the north shore, lying 0.7 mi SSE of Gamage Point and Palmer Station along the SW coast of Anvers Island. The suggestive name was given by Palmer Station personnel. The narrow, deep channel separating this island from Anvers Island is a shortcut from the station to the Biscoe Bay area by water.
hypothesis: Palmer Station is not location on Shortcut Island.
reason: Palmer Station is actually located on Anvers Island, not Shortcut Island.  The statement indicates that Shortcut Island is 0.7 miles south-southeast of Gamage Point and Palmer Station, which are along the SW coast of Anvers Island.