Hvítserkur

Amazing, 15 m tall cliff in the sea. This narrow cliff has two natural arches carved by the sea wave action.

Dyrhólaey

Two neighboring natural arches under a narrow promontory in the sea. Nearby are also basalt stacks that are up to 66 m tall.

Dimmuborgir kirkja

Natural arch – a section of lava tube in an unusual lava field. In Dimmuborgir are found also numerous chimneys of lava, where one can enter.

Arnarstapi

A group of sea arches and other rocks with amazing shapes.

Prohodna

Giant cave – 262 m long passage through the mountain that is world-famous thanks to two openings in the ceiling – so-called "Eyes of God" or "Oknata". The largest entrance in the cave has a height of 42 – 45 metres.

Bala’a sinkhole (Baatara sinkhole) and waterfall

Approximately 255 m deep, nearly vertical cave with waterfall in it. The entrance in the cave is some 70 m deep sinkhole. Here waterfall has percolated one side of sinkhole, creating three natural bridges one above the other. Waterfall disappears underground.

Le Trou de David

A former sinkhole at the sea, with two natural arches towards the sea. In calm weather, one could swim into this sinkhole from the sea. Collapsed in December 2011.

The Marble Caves (Cavernas de Mármol)

Unique geological formation – peninsula consisting of pure marble in the beautiful Lago General Carrera has been eroded by the lake water, forming caves, mushroom formations and tunnels in the marble.

Talava Arches and Caves

One of the major sights in Niue: a beautiful cave with three huge natural arches. After entering the cave, there are two exits – one towards the sea with one enormous natural arch visible (approximately 7 m high and 20 – 25 m wide), another – to a sinkhole with two other large natural arches. From the sinkhole are available some more caves. Sinkholes and arches have been formed by the collapse of the cave roofs. First seen by Captain Cook.

Irshalgad needle hole

A natural arch – a hole shaped in basalt near the summit of Irshalgad Hill.