Flögufoss is a nice waterfall is the east of Iceland, not far from Breiðdalsvík. The river Flöguá drops down over the cliffs in a single drop over appr. 60 meters.
From Breiðdalsvík take road 1 to the west and take the second exit (left) to road 966. In a sharp bend to the left you also can go right to Flaga. From here there must be a trail to the Flögufoss, it must be short and easy.
Breiðdalsfjörður valley is often mentioned as a hidden gem, a must to visit and easy to reach.