Fjärdvättingen is a
Swedish island
An island or isle is a piece of land, distinct from a continent, completely surrounded by water. There are continental islands, which were formed by being split from a continent by plate tectonics, and oceanic islands, which have never been ...
belonging to the
Piteå archipelago.
The island is located off the coast of Jävrebodarna. The island has no shore connection but it has a number of summer houses.
References
Islands of Sweden
{{Sweden-geo-stub