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The system of Odesa Catacombs consists of a network of basements, bunkers, drainage tunnels and storm drains as well as natural caves. [1] The catacombs are on three levels and reach a depth of 60 metres (200 ft) below sea level. It is one of the world's largest urban labyrinths, running up to 2,500 kilometres (1,600 mi). [1]
This list of deepest caves includes the deepest known natural caves according to maximum surveyed depth as of 2024. The depth value is measured from the highest to the lowest accessible cave point. The depth value is measured from the highest to the lowest accessible cave point.
It was 8.5 m (28 ft) and so the total cave depth reached 2,212 m (7,257 ft). [1] September 2018 – a photo trip of the PST to the bottom of the cave took place, led by Pavel Demidov, with the English cave photographer Robbie Shone. [9] The team narrowly escaped the flood caused by a rain storm, which filled the lower level of the cave. [10] [11]
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The Coves de l'Aranya (in original Catalan language, known in English as the Spider Caves and in Spanish Cuevas de la Araña) are a group of caves in the municipality of Bicorp in València, eastern Spain. The caves are in the valley of the river Escalona and were used by prehistoric people who left rock art.
Hranice Abyss. Hranice Abyss (Czech: Hranická propast) is the deepest flooded pit cave in the world. It is a karst sinkhole near the town of Hranice, Czech Republic.The greatest confirmed depth is 519.5 m (1,704 ft), of which 450 m (1,476 ft) is underwater.
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The caves are predominantly combinations of vadose shafts and steep meandering passages, although in places they cut apparently old fossil passages at different levels (e.g., at −2,100–2,040 m (−6,890–6,690 ft) in Kujbyshevskaja and Krubera caves, −1,200–1,240 m (−3,940–4,070 ft) and −980–1,150 m (−3,220–3,770 ft) in the ...