Kjalnafossur is a waterfall about 6 metres high on the island of Streymoy. Kjalnafossur you will find diligences no. 21 leading to the town of Vestmann. Nearby, you can park at the Vestmannavegurin viewpoint and take a 20-minute walk upstream.
From the waterfall you will see the island of Vágar on your right, the island of Koltur directly in front of you and the island of Hestur on your left.