The thousands of islands that make up the Stockholm archipelago have something for everyone. Many are tiny and uninhabited. Some, like Sandhamn, are crowded all summer long and attract hundreds of private sailboats. You can find great food and great places to swim or stroll, and also hotels, hostels, and wooden cabins in which to overnight. You need half a day at the bare minimum to experience the archipelago proper, but if time is short take a ferry to Fjäderholmarna, which is very close to the center. There you can enjoy a waterside meal and get a taste of archipelago living.