It is a basalt rock, probably a dike. Lava injected among more soft rock, slowly erased by the elements, leaving walls like this standing in nowhere. On Mount Etna is possible to observe dikes like this from the bove valley edge.

The legends says that Hviserkur is a dragon-troll was petrified by sunlight while it was outside its burrow.
Hviserkur means "white shirt", due to the guano on its rocks left from many seabirds nesting on it.

Let's leave the car at the parking area. An easy path goes straight to the bay, but the scenic view point is on the left.

From here is possible to reach the rock on a steep, slippery descent; in case you don't feel to go from here, we suggest you to come back to car park and descent from the first path.

Hviserkur is quite interesting with its regular shape and its image reflected on the sea. Please look for high tide time if you want to walk on the black beach lookig also at the many birds (gulls and arctic terns) nesting on the shore.

In front of the bay, many seals are lazily laying on the sand. From here is possible to come back at the car park.

Please note: there is a different path from the seals observation point, leading to the coffee shop and not to the car park.