
Main Island
(Willis Islands)
South Georgia and the South Sandwich Islands
Location: 54° 0' 34" S 38° 12' 48" W
the largest of the Willis Islands, was discovered and charted by Cook on 16 January 1775, and named Willis's Island or Willis's Isle after Midshipman Thomas Willis, RN, of HMS Resolution, who first sighted it. The name was later extended to the whole group (Willis Islands, q.v.), and the largest island renamed Main Island or Willis Main Island.