Hidra

Hidra is the largest island in Norway's Agder county. The 20.8-square-kilometer (8.0-square-mile) island is located south of the mainland coast in Flekkefjord municipality, divided by the 350-meter (1,150-foot) wide Hidrasund strait and the Listafjorden. In 2015, the island's population was estimated to be around 500 people, with the majority of them living on the west side in Kirkehavn, where Hidra Church is located. The town of Rasvg is another important settlement on the island's south side. The Norwegian government considered building an underground tunnel to connect the island to the mainland without using a boat in 2007, but it was deemed too expensive for the tiny advantage. The island served as the administrative capital of Hidra, which lasted from 1893 to 1965.

The island is almost entirely made up of granite, with some moraine deposits thrown in for good measure. The interior of the island, which is covered in oak and other deciduous trees, is much more inviting. The Rasvgfjorden divides the island nearly in half, and the Eie Canal was created through the remaining isthmus to allow small boats to sail all the way through.

Location: Agder, Norway