Gato, I guess you are referring to the islands between Turku and Aland.

Here some maps if anybody is interested to find out what we're talking about :

http://www.visitfinland.com/ima/main/maps/finland_southern_finland_en.pdf

Indeed there are 1000's of them. You can see that more clearly using Google map and then zooming out and zooming in on southern Finland :

http://maps.google.nl/maps?utm_campaign=...p;utm_term=maps

Wouter