Dyrahólaey is a naturally formed arch just offshore near the tiny village of Vík on the south shore in Iceland. The 120 m high basalt rock is a former volcanic island that has been carved and shaped by the raging Atlantic Ocean since the Ice Age. The hole in the middle is big enough for fishing vessels to sail through, not recommended though as you never know how the tide is going to behave. Remarkably, in 1995 two adventurers did a stunt flight in a small aircraft through the whole and lived to tell the tale. Not recommended either as you never know how the wind is going to behave.
Easily accessible and part of the Ring Road road trip drive
The best view of Dyrhólaey is from its lighthouse built in 1927 and in earlier time there used to be a fishing station to the east of the arch. Dyrhólaey is easily accessible from the Ring Road, road nr. 1. During the summer, Dyhólaey is a bird sanctuary while all seabird species found in Iceland hatch their eggs. It is most certainly an ideal location for bird-watchers as you will be able to observe the mating and breeding behavior of e.g. the arctic tern, kittiwake, fulmar, plover, whimbrel, and puffins.
A caution is needed if you choose to walk the black beach
A black beach that is quite pleasant for a stroll surrounds Dyrhólaey. It is a good vantage point to appreciate the peninsula's enormous size and elephant-like form. Here a caution is needed as there is a considerable difference between high tide and low tide and the waves can be extremely dangerous when the tide is high.