Woke up early time catch the fast Ferry time Sandhamn (SEK 130 ~ US$20 pp each way), the island on the edge of the middle archipelago with a famous yacht club (after being one of 9 stops in a sailing race around the world).
The islands are similar to the Muskokas and San Juan Islands, ie granite rocks, pine trees. And lots of cottages, especially closer in to Stockholm.
The ferry was crowded and noisy (yatzy, in Swedish spelling, at our communal table, really?)
A quaint village with packed in little summer homes, mostly painted red with well kept gardens.
Enjoyed a waterside lunch, though the menu options were limited ( and $11 for a 40cL draft beer!?)
A 25 minute walk through the forest led to a nice pair of small beaches, though one was windy and the Baltic sea was cold). We relaxed before walking back to join the hoards boarding the ferry.