Middle Caicos is the largest island in the Turks and Caicos Islands. To the west, it is separated from North Caicos by Juniper Hole, and to the east, from East Caicos by Lorimer Creek, both narrow passages that can accommodate only small boats. The island is known for its extensive system of caves and its significant Lucayan Indian archaeological sites. The island is connected to North Caicos via a causeway. Middle Caicos was previously called Grand Caicos, although this name is not used today.