Cruises visiting Deception Island

Deception Island is a flooded volcanic caldera you sail straight into, through a gap in the crater wall called Neptune's Bellows. Inside: black-sand beaches that steam at low tide, the rusting remains of a whaling station, and an eerie, amphitheatre calm.

It is one of Antarctica's most surreal landings — and a favourite spot for the polar plunge, warmed (slightly) by geothermal sand.