The Blasket Islands are in the west of Dingle Island and the biggest of the islands Great Blasket was still inhabited untill 1953.
Nowadays you may take a ferryboat from Dunquin in order to explore the Blasket Islands. You may still see the remains of the church and several houses there.
In 1588 the Santa Maria de la Rosa, a ship of the spanish armada sunk in that area around the Blaskets.
You may click here in order to see the Blasket Islands on a map :
If you have a bit of time in Dingle you should also go on a day trip to the Blasket Islands. The island was inhabited until 1953 and the remains of the village overlook a lovely beach. The most famous inhabitants of the Blaskets were Peig Sayers and Tomas O´Crohan, who have written books about life on the island. There is a little coffee-shop in the village, and you can also stay overnight in a hostel, but this should be booked well in advance in the summer.