Hvalfjörður Tunnel (Hvalfjarðargöng in Icelandic) is a road tunnel under the Hvalfjörður fjord in Iceland and a part of Route 1 (Iceland's ring road). It is 5,770 m long and reaches a depth of 165m below sea level. Opened on 11 July 1998, it shortens the distance from Reykjavík to the western and northern parts of the island by 45 km.