Caving – also known as spelunking in the United States and Canada and potholing in the United Kingdom and Ireland – is the recreational pastime of exploring wild cave systems. In contrast, speleology is the scientific study of caves and the cave environment.
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word cave can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called exogene caves. Caves which extend further underground than the opening is wide are called endogene caves.
New Zealand is an island country located in the southwestern Pacific Ocean, near the centre of the water hemisphere. It consists of a large number of islands, estimated around 700, mainly remnants of a larger land mass now beneath the sea. The land masses by size are the South Island and the North Island, separated by the Cook Strait. The third-largest is Stewart Island / Rakiura, located 30 kilometres off the tip of the South Island across Foveaux Strait. Other islands are significantly smaller in area. The three largest islands stretch 1,600 kilometres across latitudes 35° to 47° south. New Zealand is the sixth-largest island country in the world, with a land size of 268,710 km2 (103,750 sq mi).
Te Kūiti is a town in the north of the King Country region of the North Island of New Zealand. It lies at the junction of State Highways 3 and 30 and on the North Island Main Trunk railway, 80 kilometres (50 mi) south of Hamilton. The town promotes itself as the sheep shearing capital of the world and is host to the annual New Zealand National Shearing Championships.
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.
Waitomo is a rural community in the King Country region of New Zealand's North Island. There are several solutional cave systems in the area around the village, which are popular tourist attractions. Restaurants and accommodation are centred in the village to serve visiting tourists.
Waitomo District is a territorial authority, located in the Waikato region, at the north of the King Country area in the North Island of New Zealand. A small part of the district, the locality of Tiroa, however, lies in the Manawatū-Whanganui region.
Tākaka Hill is a range of hills in the northwest of the South Island of New Zealand. Made of marble that has weathered into many strange forms and with numerous sink holes, it is typical karst country. The marble is Ordovician in age and from the Takaka Terrane.
Bulmer Cavern is New Zealand's longest cave system, running for 74.3 km (46.2 mi) through Mount Owen in the Tasman region of the northwest South Island. John Patterson discovered the cave on New Year's Day 1984, by dropping a rock down and counting the seconds until it reached the bottom.
Nettlebed Cave is a limestone cave located in the Mount Arthur region of the northwest South Island of New Zealand. The presence of ongaonga, an endemic tree nettle, near the bottom entrance gives the cave its name.
The King Country is a region of the western North Island of New Zealand. It extends approximately from Kawhia Harbour and the town of Ōtorohanga in the north to the upper reaches of the Whanganui River in the south, and from the Hauhungaroa and Rangitoto Ranges in the east to near the Tasman Sea in the west. It comprises hill country, large parts of which are forested.
The Waitomo Glowworm Caves attraction is a cave at Waitomo on the North Island of New Zealand. It is known for its population of Arachnocampa luminosa, a glowworm species found exclusively in New Zealand. This cave is part of the waitomo streamway system that includes the Ruakuri Cave, Lucky Strike, and Tumutumu Cave.
Gardner's Gut is an extensive cave system in the Waitomo area of New Zealand. It is located in the Ruakuri Caves & Bush Scenic Reserve, an area that also contains a number of other natural features of note. The reserve is administered by New Zealand's Department of Conservation (DOC). With a length of over 12 km of explored passages, it is New Zealand's 6th largest known cave system, and the largest in the North Island.
Honeycomb Hill Cave is located in the Oparara Basin, on the northwestern edge of the South Island of New Zealand. The Oparara River flows through a section of the cave.
Ruakuri Cave is one of the longer caves in the Waitomo area of New Zealand. It was first discovered by local Māori between 400 and 500 years ago. The name Te Ruakuri, or "The Den of Dogs" was given to the surrounding area when wild dogs were discovered living in the entrance of the cave.
The Waitomo Caves Discovery Centre is a museum located in the town of Waitomo in the North Island of New Zealand. The museum is also referred to as the Waitomo Caves Discovery Centre, the Waitomo Museum of Caves and the Waitomo Education Centre.
Cave diving is underwater diving in water-filled caves. The equipment used varies depending on the circumstances, and ranges from breath hold to surface supplied, but almost all cave diving is done using scuba equipment, often in specialised configurations with redundancies such as sidemount or backmounted twinset. Recreational cave diving is generally considered to be a type of technical diving due to the lack of a free surface during large parts of the dive, and often involves planned decompression stops. A distinction is made by recreational diver training agencies between cave diving and cavern diving, where cavern diving is deemed to be diving in those parts of a cave where the exit to open water can be seen by natural light. An arbitrary distance limit to the open water surface may also be specified. Despite the risks, water-filled caves attract scuba divers, cavers, and speleologists due to their often unexplored nature, and present divers with a technical diving challenge.
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.
