Harwoods Hole is a cave system located in the northwest of the South Island of New Zealand, in the Abel Tasman National Park. At 183 metres (600 ft), it is New Zealand's deepest vertical shaft. It was first explored in 1958, long after it was discovered.
Gaping Gill is a natural cave in North Yorkshire, England. It is one of the unmistakable landmarks on the southern slopes of Ingleborough – a 98-metre (322 ft) deep pothole with the stream Fell Beck flowing into it. After falling through one of the largest known underground chambers in Britain, the water disappears into the bouldery floor and eventually resurges adjacent to Ingleborough Cave.
Krubera Cave is the second-deepest-known cave on Earth, after the Veryovkina Cave. It is located in the Arabika Massif of the Gagra Range of the Western Caucasus, in the Gagra District of Abkhazia, an occupied region of Georgia.
Gouffre Jean-Bernard or Réseau Jean Bernard, sometimes known simply as Jean Bernard, is one of the deepest caves known in the world. It is in the Alps in Samoëns, France. The first entrance to the cave was found by the French caving group Groupe Vulcain in 1963. More entrances have been found over the years since, and currently at least thirteen are known. The highest entrance, known as C37, is at 2,333 m (7,654 ft) above sea level. The cave is named after Jean Dupont and Bernard Raffy, two Groupe Vulcain members who died in 1963 in an unrelated expedition in Goule de Foussoubie Cave.
Langcliffe Pot is a cave system on the slopes of Great Whernside in Upper Wharfedale, about 3 kilometres (1.9 mi) SSE of Kettlewell in North Yorkshire. It is part of the Black Keld Site of Special Scientific Interest where the "underground drainage system which feeds the stream resurgence at Black Keld is one of the largest and deepest in Britain, although only a small proportion of its cave passages are accessible at present." Mossdale Caverns is also part of the Black Keld SSSI. Although a considerable length of passage has been explored in Langcliffe Pot, the current end is over 170 metres (560 ft) above the resurgence, and over 4 kilometres (2.5 mi) in distance. A trip to the far end has been described as "one of the most serious undertakings in British caving".
Noon's Hole lies about 5 km northwest of the centre of Boho, in the townland of Old Barr in the parish of Devenish, County Fermanagh, close to the border with Boho parish. The cave is under part of the escarpment on the east side of the Glenade Sandstone uplands. At 81 m (266 ft), this pothole was thought to have the deepest shaft in Ireland, but this honour was passed to the nearby Reyfad Pot, which contains an entrance shaft of 88 m (289 ft). The continuation of the cave system contains 3.7 km (2.3 mi) of passage, and it connects to the resurgence at Arch Cave through three cave dives, making this system the 8th deepest in Ireland, at 108 m (354 ft).
The Pearse River is a river of the Tasman Region of New Zealand's South Island. It flows east from sources in the Wharepapa / Arthur Range, reaching the Motueka River 20 kilometres southwest of Motueka.
Shannon Cave is an active stream passage cave which straddles the border of County Fermanagh, Northern Ireland and County Cavan in the Republic of Ireland.
David Apperley is an Australian technical diver and cave explorer. Apperley holds instructor levels in cave diving, Deep Mixed Gas Diving and Deep Closed Circuit Rebreather Diving and was the expedition co-ordinator for the Pearse Resurgence Project 1996–2003. He was the project leader on the Royal Mail Ship Niagara 2003 Survey Project, which involved the organization and planning of putting some of the world's most experienced divers onto the 130-metre-deep Niagara wreck site, off the North Island of New Zealand.
Chevé Cave is a deep cave located in the Sierra Juárez mountain range in the southern Mexico state of Oaxaca. As of 2021, its deepest point has been measured at 1,536 metres (5,039 ft) deep, making it the second deepest known cavern in Mexico and the Americas, as well as the world's 11th deepest cave. The main cave apparently ends in a terminal sump.
Craig Challen, SC is an Australian technical diver and cave explorer who played a substantial role in the Tham Luang cave rescue. He was the recipient of the Oztek 2009 Diver of the Year award for his services to caving, and was joint winner of the 2019 Australian of the Year.
Hranice Abyss 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. In 2020, a scientific expedition to the cave revealed that part of the system apparently reaches 1 kilometre deep, albeit with the lowest reaches sediment-filled. Analysis of the water found carbon and helium isotopes which implied that the cave has been formed by acidic waters, heated by the mantle, welling up from below.
Short Drop Cave and Gavel Pot are different entrances into the same cave system on Leck Fell, in Lancashire, England. The main top entrance, Short Drop Cave, is a small hole in a fenced off shakehole near the main stream sink; Gavel Pot, a window into the system, is a large fenced shakehole some 40-metre (130 ft) deep requiring tackle to descend. There are two other smaller entrances into Short Drop Cave. At its base the system links via a sump with Lost Johns' Cave, and is part of the Three Counties System, an 87 kilometres (54 mi) cave system which spans the borders of Cumbria, Lancashire, and North Yorkshire.
Sistema Huautla is a cave system in the Sierra Mazateca mountains of the southern Mexican state of Oaxaca. As of April 2021 it was the deepest cave system in the Western Hemisphere, 1,560 metres (5,120 ft) from top to bottom, with over 55 miles of mapped passageways.
Veryovkina Cave is a cave in Abkhazia, internationally recognized as part of Georgia. At 2,223 meters (7,257 ft) deep, it is the deepest-known cave on Earth. Veryovkina is in the Arabika Massif, in the Gagra mountain range of the Western Caucasus, on the pass between the Krepost and Zont mountains, close to the slopes of Mount Krepost. Its entrance is 2,285 metres (7,497 ft) above sea level. The entrance of the cave has a cross section of 3 m × 4 m, and the depth of the entrance shaft is 32 metres (105 ft).
Boybuloq is a limestone cave in Uzbekistan, the deepest cave in Central Asia and all Asia except its western part. The cave is 1,430 metres (4,690 ft) deep and 15,212 metres (49,908 ft) long with the main entrance at an elevation of 2,647 metres (8,684 ft). It is situated at the edge of Baysun-Tau mountain ridge, the southern spur of the Gissar Range, in the southeast of the country. The nearest village is Dehibolo, to the northeast of Boysun.
The Long Kin East Cave - Rift Pot system is a limestone cave system on the southern flanks of Ingleborough, North Yorkshire in England lying within the designated Ingleborough Site of Special Scientific Interest. Long Kin East Cave starts as a long meandering stream passage but then plummets down a 58-metre (190 ft) deep shaft when it meets a shattered fault into which Rift Pot also descends. At the bottom, the stream flows through some low canals and sumps, to eventually emerge at Austwick Beck Head in Crummackdale.
Bisaro Anima is a cave located on the Mount Bisaro plateau in British Columbia, Canada. It is the deepest cave in Canada.
The Wharepapa / Arthur Range is a mountain range partially marking the boundary between the Tasman District and West Coast Region of New Zealand's South Island. The range is at the eastern extent of the Tasman Mountains which make up much of the island's northwest, making it easily visible from across the low-lying Waimea Plains further to the east. The range's location and its many uses make it a significant site for local Māori, including the iwi of Te Ātiawa and Ngāti Rārua. This includes the prominent peaks of Mount Arthur and Pukeone / Mount Campbell, which both hold mana in their own right and have become part of the identity of the aforementioned iwi.
The Réseau du Clot d'Aspres is a cave system located mainly under the valley of Clot d'Aspres, which lies within the commune of Villard-de-Lans in the north of the Vercors Massif, in Isère, France. This extensive karst system contains 42 kilometres (26 mi) of passages over a height range of 1,066 meters. The highest point is upstream of the Oréade cave +74 metres (243 ft), and the lowest point is the siphon of the Nuits-Blanches scialet which has been dived to a depth of 34 metres (112 ft).
