River Skjálfandafljót has its source in Vonarskarð between the glaciers Vatnajökull & Tungufellsjökull and it enters the sea in Skjálfandi. Considerable numbers of sea-run char migrate into Skjálfandafljót where there are four trout beats. The best known of these is undoubtedly the Vesturbakki Ós-Brú. This beat has a lot of fresh water from the Kinnarfjöll mountains. The main fishing areas are at the confluence of the freshwater rivers and Skjálfandafljót. These include the confluence of Skjálfandafljót and Leikskálarár and also Bjargarhylji. Austurbakki Ós-Brú is not as well known, but there is often good fishing in Kvíslin, which flows into the river. Also, there is sometimes good fishing where water comes from the lava of Aðaldalshraun and flows into Skjálfandafljót. Not yet mentioned, there are two beats above the bridge and there is a slight chance of salmon. The east bank is Vaðseyja, the west bank is Brú-Fellsendaskógur.