Inis Meáin
Inis Meáin is in the middle of the three Aran Islands. It is separated from the other two islands by 1.5 kms (1 mile) of sea. It measures 5 kms (3 miles) in length by 3 kms (2 miles) in width.

Inis Oirr
Inis Oirr the Eastern Island, is the nearest to Doolin in Co. Clare, just 9.5 kms (6 miles) away. It is the smallest of the three islands, measuring 3 kms in length by 3 kms in width (2 miles by 2 miles).