Wookey Hole Caves are a series of limestone caverns, a show cave and tourist attraction in the village of Wookey Hole on the southern edge of the Mendip Hills near Wells in Somerset, England. The River Axe flows through the cave. It is a Site of Special Scientific Interest (SSSI) for both biological and geological reasons. Wookey Hole cave is a "solutional cave", one that is formed by a process of weathering in which the natural acid in groundwater dissolves the rocks. Some water originates as rain that flows into streams on impervious rocks on the plateau before sinking at the limestone boundary into cave systems such as Swildon's Hole, Eastwater Cavern and St Cuthbert's Swallet; the rest is rain that percolates directly through the limestone. The temperature in the caves is a constant 11 °C (52 °F).
Weeki Wachee is an unincorporated community and former city located in Hernando County, Florida, United States. As of the 2020 census, the community has a total population of 16. The 12,000-acre (4,900 ha) Weeki Wachee Preserve and the Weeki Wachee Springs park are located in the area. The park includes water rides, animal shows, mermaid costume shows, and manatee watching. The communities of Weeki Wachee Gardens and Spring Hill are nearby.
A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water enters into underground passages known as ponor, swallow hole or swallet. A cenote is a type of sinkhole that exposes groundwater underneath. Sink and stream sink are more general terms for sites that drain surface water, possibly by infiltration into sediment or crumbled rock.
A cenote is a natural pit, or sinkhole, resulting when a collapse of limestone bedrock exposes groundwater. The term originated on the Yucatán Peninsula of Mexico, where the ancient Maya commonly used cenotes for water supplies, and occasionally for sacrificial offerings. The name derives from a word used by the lowland Yucatec Maya—tsʼonoʼot—to refer to any location with accessible groundwater.
The Woodville Karst Plain Project or WKPP, is a project and organization that maps the underwater cave systems underlying the Woodville Karst Plain. This plain is a 450-square-mile (1,200 km2) area that runs from Tallahassee, Florida, U.S. to the Gulf of Mexico and includes numerous first magnitude springs, including Wakulla Springs, and the Leon Sinks Cave System, the longest underwater cave in the United States. The project grew out of a cave diving research and exploration group established in 1985 and incorporated in 1990.
Vero Man refers to a set of fossilized human bones found near Vero, Florida, in 1915 and 1916. The human bones were found in association with those of Pleistocene animals. Pleistocene dates range from 2,580,000 to 11,700 years ago. The suggestion that humans might have been present in Florida during the Pleistocene was controversial at the time and most of the contemporary archaeologists did not accept that the Vero fossils could be that old.
Wakulla Springs is located 14 miles (23 km) south of Tallahassee, Florida and 5 miles (8.0 km) east of Crawfordville in Wakulla County, Florida at the crossroads of State Road 61 and State Road 267. It is protected in the Edward Ball Wakulla Springs State Park.
The Page–Ladson archaeological and paleontological site (8JE591) is a deep sinkhole in the bed of the karstic Aucilla River that has stratified deposits of late Pleistocene and early Holocene animal bones and human artifacts. The site was the first pre-Clovis site discovered in southeastern North America; radiocarbon evidence suggests that the site dates from 14,200 to 14,550 BP. These dates are roughly 1,000 to 1,500 years before the advent of the Clovis culture. Early dates for Page–Ladson challenge theories that humans quickly decimated large game populations in the area once they arrived.
The Aucilla River rises in Brooks County, Georgia, USA, close to Thomasville, and passes through the Big Bend region of Florida, emptying into the Gulf of Mexico at Apalachee Bay. Some early maps called it the Ocilla River. It is 89 miles (143 km) long and has a drainage basin of 747 square miles (1,930 km2). Tributaries include the Little Aucilla and Wacissa Rivers. In Florida, the Aucilla River forms the eastern border of Jefferson County, separating it from Madison County on the northern part, and from Taylor County to the south.
Madison Blue Spring State Park is a Florida State Park, located approximately ten miles east of Madison on the west bank of the Withlacoochee River. It contains one of the state's 33 first magnitude springs. This title entails that the spring is discharging at least 2,800 liters of water per second.
The Warm Mineral Springs is a water-filled sinkhole located in North Port, Florida, a mile north of U.S. 41. The primary water supply is a spring vent deep beneath the pool's water surface. Warm Mineral Springs is the only warm water mineral spring in the State of Florida. It is an important geological and archaeological site containing Native American remnants. The site was operated as a spa from 1946 until 2000. It was added to the U.S. National Register of Historic Places on November 28, 1977. The springs re-opened for swimming only in 2014.
Gough's Cave is located in Cheddar Gorge on the Mendip Hills, in Cheddar, Somerset, England. The cave is 115 m (377 ft) deep and is 3.405 km (2.12 mi) long, and contains a variety of large chambers and rock formations. It contains the Cheddar Yeo, the largest underground river system in Britain.
Little Salt Spring is an archaeological and paleontological site in North Port, Florida. The site has been owned by the University of Miami since 1980 with research performed there by the university's Rosenstiel School of Marine, Atmospheric, and Earth Science.
Melbourne Bone Bed is a paleontological site located at Crane Creek in Melbourne, in the U.S. state of Florida. This site contains fossils from the Late Pleistocene period 20,000 to 10,000 years before the present. The fossils include extinct animals such as varieties of camels, dire wolves, Florida cave bears, giant armadillos, giant beavers, giant bison, giant ground sloths, mammoths, mastodons, saber-toothed cats, and tapirs.
Crane Creek is a 3.3-mile-long (5.3 km) stream in Melbourne, Florida, United States. It is a tributary of the Indian River, with its mouth in the vicinity of Front Street.
The Indigenous peoples of Florida lived in what is now known as Florida for more than 12,000 years before the time of first contact with Europeans. However, the indigenous Floridians living east of the Apalachicola River had largely died out by the early 18th century. Some Apalachees migrated to Louisiana, where their descendants now live; some were taken to Cuba and Mexico by the Spanish in the 18th century, and a few may have been absorbed into the Seminole and Miccosukee tribes.
The Cutler Fossil Site (8DA2001) is a sinkhole near Biscayne Bay in Palmetto Bay, Florida, which is south of Miami. The site has yielded bones of Pleistocene animals and bones as well as artifacts of Paleo-Indians and people of the Archaic period.
The Cave of Pego do Diabo is a small karst cave in a Turonian limestone outcrop located about 250 metres above sea level in the municipality of Loures, about 20 km north of Lisbon in Portugal. The erosion of the outcrop resulted in a set of openings in the rocks wide enough to be exploited by humans. Several archaeological studies have been conducted within the cave, which give insights into the duration of Neanderthal presence on the Iberian Peninsula and to the presence of carnivorous animals during the Paleolithic.
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.
