What are the usual wind conditions and wave conditions in the summer where you would be sailing? This could make a difference in your choice of boat.

Also, if you are planning to explore the archipelago and maybe do some camping on the islands, another factor would be the load-carrying capacity of the boat to bring camping gear, food and water.

I am also curious about whether you have beaches up there or whether the coastlines are mostly rocky. Are there beaches in the archipelago?