Adventdalen is a long valley that follows Adventdalselva (Advent Valley River) on the island Spitsbergen in Svalbard, Norway. The valley and the river flow into Adventfjorden and further into Isfjorden.

Adventdalen is a long valley that follows Adventdalselva (Advent Valley River) on the island Spitsbergen in Svalbard, Norway. The valley and the river flow into Adventfjorden and further into Isfjorden.