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Hölloch – world record again!

World record: so deep and at the same time so long! No other cave system in the world has that.

With more than 207 kilometres of explored length, the Hölloch is not only the largest cave system in Switzerland and Europe, but one of the largest caves in the world. Since speleogists discovered a new spectacular link in August 2020, there are now 1033 metres of altitude between the lowest (551 m) and the highest (1584 m) point of this world-famous cave system – a new world record!

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