Indre Fosen Municipality in the context of Vanvikan

The Trondheim Fjord or Trondheimsfjorden (pronounced [ˈtrɔ̂nː(h)æɪmsˌfjuːɳ]), an inlet of the Norwegian Sea, is Norway's third-longest fjord at 130 kilometres (81 mi) long. It is located in the west-central part of the country in Trøndelag county, and it stretches from Ørland Municipality in the west to Steinkjer Municipality in the north, passing the city of Trondheim on its way. Its maximum depth is 617 metres (2,024 ft), in the channel between Orkland Municipality and Indre Fosen Municipality.

The largest islands in the fjord are Ytterøya and Tautra; the small island of Munkholmen is located near the harbor of Trondheim; and there are several islands at the entrance of the fjord. The narrow Skarnsundet is crossed by the Skarnsund Bridge. The part of the fjord to the north of the strait is referred to as the Beitstadfjorden. The main part of the Trondheimsfjord is ice-free all year; only Verrasundet, a long and narrow fjord branch in the northern part of the fjord, might be ice covered in winter. The Beitstadfjorden might also freeze over in winter, but only for a few weeks.

The Skarnsund Bridge (Norwegian: Skarnsundet bru or Skarnsundbrua) is a 1,010-metre (3,310 ft) long concrete cable-stayed bridge that crosses the Skarnsundet strait in Inderøy Municipality in Trøndelag county, Norway. When finished in 1991, it replaced the Vangshylla–Kjerringvik Ferry and it gives the communities in Indre Fosen Municipality easier access to the central areas of Innherred. The bridge is the only road crossing of the Trondheimsfjord, and is located along Norwegian County Road 755.

The bridge has a span of 530 metres (1,739 ft), making it the longest of its type in the world for two years. The two 152-metre (499 ft) tall pylons are located at Kjerringvik on the west side, and at Vangshylla on the east side. Following the opening, there was a seventeen-year collection of tolls, needed to finance 30% of the 200 million kr investment. In 2007, the bridge was listed as a cultural heritage. In 2012, Mosvik Municipality and Inderøy Municipality (located on either side of the bridge) were merged to form one large municipality of Inderøy.

Beitstadfjorden (Urban East Norwegian: [ˈbæ̂ɪtstɑˌfjuːɳ]) is the innermost arm of the Trondheimsfjord in Trøndelag county, Norway. It is located in Steinkjer Municipality, Inderøy Municipality, and a small part extends into Indre Fosen Municipality. The fjord has a length of 28 kilometres (17 mi) from southwest to northeast, and a width of about 6 to 8 kilometres (3.7 to 5.0 mi).

The fjord begins at the Skarnsund strait in the south and extends northeast to the city of Steinkjer. On the far western part of the fjord, the Verrasundet strait extends south to the village of Verrabotn in Indre Fosen Municipality, while in the north the Beitstad strait stretches northward past the villages of Malm, Beitstad, and Vellamelen. In Inderøy Municipality, the villages of Kjerknesvågen and Breivika are located along the shoreline. Follafoss is located along the north side of the fjord.

Verrasundet is a fjord in Trøndelag county, Norway. The 22-kilometre (14 mi) long fjord branches off of the northern part of the vast Trondheimsfjorden in Indre Fosen Municipality, Steinkjer Municipality, and Inderøy Municipality. It extends from Beitstadfjorden to the village of Verrabotn. The fjord is a maximum of 2 kilometres (1.2 mi) wide, but at Trongsundet, the fjord is barely 200 metres (660 ft) wide.