Ásbyrgi is a canyon in the north of Iceland just about an hour away from the town of Húsavík. It is part of the Vatnajökull national park and is about 3,5 km long and 1 km wide.
It was probably created by a glacial flooding about 8 - 10 000 years ago. According to legend however it was formed when Sleipnir Óðin´s horse touched the ground there, which also explains the horse-shoe shape of the canyon.