Wikipedia
Singö
Singö Is an island located in the north of Stockholm County, close to the border of Uppsala County. The island has around 400 inhabitants and is around 25 km² big. Söderby, Backby, Tranvik, Ellan, Norrvreta and Boda are the villages located on Singö, the closest village with over 200 inhabitants is however Grisslehamn on Väddö. In Söderby, there is a small grocery store open from 10:00-18:00 in the week and 10:00-15:00 on weekends and holidays.