Sandhamn (Swedish for "Sand Harbour") is a small settlement in the central-peripheral part of the Stockholm Archipelago at the 59th parallel north in central-eastern Sweden. approximately 50 km (30 mi) east of Stockholm. Sandhamn is located on the island Sandön ("Sand Island"), which is, however, colloquially referred to as Sandhamn. Administratively, it is in Värmdö Municipality and Stockholm County. One of the most important natural ports in the archipelago with easy access to the Swedish capital, Sandhamn has been popular for pleasure boating since the late 19th century.
https://en.wikipedia.org/wiki/Sandhamn