Rolla is an island in the municipality of Ibestad

Ibestad

Ibestad is a municipality in Troms county, Norway. It is part of the Hålogaland traditional region. The administrative centre of the municipality is the village of Hamnvik. Some of the larger villages in Ibestad include Sørvika, Å, and Laupstad....

 in Troms

Troms

or Romsa is a county in North Norway, bordering Finnmark to the northeast and Nordland in the southwest. To the south is Norrbotten Län in Sweden and further southeast is a shorter border with Lapland Province in Finland. To the west is the Norwegian Sea...

 county, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. It has an area of 106 km² (40.9 sq mi). The highest point is Drangen at a height of 1022 m (3,353 ft). The population on Rolla (2001) is 1,078.

Rolla is connected to the neighboring island of Andørja

Andørja

Andørja is a former municipality in Troms county in Norway. It is located in the northeastern part of the present-day municipality of Ibestad. The largest population area on Andørja island is the Å - Ånstad - Laupstad area with 205 residents ....

 by the Ibestad undersea tunnel

Undersea tunnel

An undersea tunnel is a tunnel which is partly or wholly constructed under a body of water. They are often used where building a bridge or operating a ferry link is impossible, or to provide competition for existing bridges or ferry links...

. Andørja is then connected to the mainland via the Mjøsund Bridge

Mjøsund Bridge

Mjøsund Bridge is a cantilever bridge in Ibestad and Salangen municipalities in Troms county, Norway. It crosses the Mjøsundet between the mainland and the island of Andørja.The bridge is long. Mjøsund Bridge was opened in 1994. It cost ....

.