Pluragrotta, Submerged cave system in Rana, Norway
The Pluragrotta cave extends through 3000 meters of limestone and marble formations, reaching depths of 135 meters below ground level.
Finnish diving teams established a connection between Pluragrotta and the dry cave Steinugleflåget in September 2013, resolving questions about the cave network structure.
The cave system draws diving specialists from multiple countries to explore its network of water-filled passages and document geological formations.
Water temperatures remain cold throughout the year, and diving equipment suitable for confined spaces is required for safe navigation through passages.
A wedding ceremony with 69 participants took place inside the underwater cave chamber in 2019, setting a Guinness World Record.
GPS coordinates: 66.21944,14.77250
Latest update: May 11, 2025 05:00
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