White Island, New Zealand
White Island is the peak of a volcano stemming from the sea floor. This volcanic island is situated in the Bay of Plenty, 48 kilometres from the east coast of the North Island of New Zealand. Measured from the sea floor, the volcano is around 1000 metres high, but only 321 metres are above sea level. The crater acquired its characteristic horseshoe shape during a fierce eruption, which crushed its wall.