Brynjudalsá is a small, but productive river in Hvalfjörður that runs to the sea in Brynjudalsvogur. It has two waterfalls, Bárðarfoss and Kliffoss, where high numbers of salmon accumulate under certain circumstances. When that happens, the anglers need to approach the river with prudence, for good results. There is often a lot of excitement below the waterfalls, especially Bárðarfoss early in the season. Later in the summer, the salmon spreads throughout the area and then Kliffoss and fishing spots below it can be very productive. The average catch over the last 5 years has been 225 salmon.