Londrangar are two prominent rocks, protruding from the coast just east of the lighthouse at Malarrif on the southern side of the Snaefellsnes peninsula. A few minutes' walk up the well-vegetated hill Svalthufa takes you to the edge of the Thufubjarg cliff to watch the interesting bird life, such as guillemots and kittiwakes. From there, it is easy to walk down to the Londrangar pillars.

They and the hill are the remnants of a crater, which has been eroded to its present form by the sea. The farmers in the area never made or make hay on the hill, because it is said to belong to the elves living in the area. Younger lava fields surround this old crater ruin. The higher pillar was first climbed in 1735 and the lower in 1938.

Just east of the higher one are ruins of fishermen's huts and walls made of lava stones, which were used for drying fish. There were quite a few fishing outfits there and further to the west at Malarrif on this dangerous and harbourless stretch. The lighthouse was built in 1917 and rebuilt in 1946. The radio beacon was placed there in 1955.