or is a strait located in Tromsø Municipality in Troms og Finnmark county, Norway. The long strait separates the island of Tromsøya (the location of the city of Tromsø) from the mainland east of the island. The strait is crossed by the Tromsøysund Tunnel (E8 highway) and by the Tromsø Bridge. The strait ranges from about wide. The strait connects to the Balsfjorden and Straumsfjorden to the south and into the Kvalsundet and Grøtsundet straits to the north. References Tromsø Landforms of Troms og Finnmark Straits of Norway