| Vortex Spring | |
|---|---|
 Main pond at Vortex Spring | |
  | |
| Coordinates | 30°46′17″N85°56′53″W / 30.77149°N 85.94812°W |
| Dive type | Training, Open-water, Deep, Cave |
| Depth range | 20 to 115 ft (6.1 to 35.1 m) |
| Bottom composition | Rock |
Vortex Spring is a commercially operated recreation, camping and dive park located near Ponce de Leon, Florida. It is the largest diving facility in the state of Florida.
Vortex Spring is a cold, freshwater spring that produces approximately 28 million US gallons (110,000 m3) of water daily. The spring consists of a 200 ft (61 m) basin with sloping sides and a cave which links the spring to the Floridan aquifer. Water temperature is steady at 68 °F (20 °C) with no thermocline, and is typically very clear. The spring runoff flows into nearby Otter Creek, which joins Sandy Creek a short distance upstream of Ponce de Leon Spring. There are many fish in the spring; large carp swim in the basin while freshwater eels live in the cave. The cave has been measured to a total of 1,642 feet (500 m).
Vortex Spring is a popular diving area both for experienced and novice divers. Recreational diver training is offered at the park. There are two underwater training platforms at 20 feet (6.1 m) which are often used for Open Water certification dives, and an inverted metal "talk box" that traps air, allowing divers to remove their regulators and talk to each other while under the surface. [1] The cavern entrance is at 58 feet (18 m) below the surface, and has an opening of 9 by 12 feet (2.7 m × 3.7 m). A handrail is mounted along the wall of the cave. The cave is accessible to 310 feet (94 m), further passage is blocked by a steel grate. Experienced divers are allowed to dive to 115 feet (35 m).
At the site, many facilities are provided for visitors. Lodging, dive shop, and changing rooms with heated showers are on site. Recreational features include diving boards, rope swings, and slides into the swimming area. Camping facilities, picnic areas, a basketball court, volleyball court, paddle boats, floats, and canoes are also provided.
The cave has been a controversial aspect of the spring. During the early 1990s, 13 divers died while exploring it. The state of Florida threatened to ban diving near cave entrances as a result of frequent cave diving accidents, but local divers responded by developing a special cave diving certification that became the standard requirement for sections of underwater caves known to be particularly hazardous. Vortex Spring complied with this by erecting a locked underwater gate at the entrance to the dangerous section of the cave. Only those who have valid cave diving certificates are permitted to enter, requiring a staff member to unlock the gate, and typically accompany them during the dive. [2]
In 2010, Ben McDaniel, a diver who was not certified for cave diving, but had been witnessed by staff and other divers gaining access to the restricted area of the cave by forcing open the gate, did not resurface after an employee let him through the gate one evening. It was initially assumed that he had died accidentally after becoming trapped underwater, but extensive searches did not find his body, nor any sign that one was present in the remote recesses of the cave.
The only significant evidence that was found were two decompression tanks filled with plain air (rather than the standard mixtures of gases normally used for diving in such conditions). The discovery of the tanks raised suspicions further because, in addition to being filled with the wrong type of gas, they were found just outside the entrance to the cave, though experienced divers know to place tanks close by to the areas they'll be exploring further down, thus keeping them within easy reach in case of emergency. This was seen as odd, considering that McDaniel was last seen deep inside the cave, attempting to bypass the gate to the restricted section by a diving staff member exiting the cave, who then unlocked it for him despite his lack of certification or diving partner. The staff diver then left, witnessing McDaniel entering the restricted zone.
It has been speculated that he may have been murdered (especially after the similarly suspicious death of Vortex Spring owner Lowell Kelly late the following year), and that his body was disposed of elsewhere. Another theory is that McDaniel staged his own disappearance to start a new life free from the many personal and financial problems he had been having at the time. [2] [3] Yet another possibility is that McDaniel did simply die by accident, and that his body still lies somewhere in the deepest parts of the cave, which are extremely difficult to access.
In 2012, another diver died in the cave, believed by those who recovered him to have been searching for McDaniel's body, motivated by a large reward offered by McDaniel's parents, which they rescinded after news of the event. [4]
Technical diving is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional purposes. Technical diving may expose the diver to hazards beyond those normally associated with recreational diving, and to a greater risk of serious injury or death. The risk may be reduced by appropriate skills, knowledge and experience, and by using suitable equipment and procedures. The skills may be developed through appropriate specialised training and experience. The equipment involves breathing gases other than air or standard nitrox mixtures, and multiple gas sources.
Cave-diving is underwater diving in water-filled caves. It may be done as an extreme sport, a way of exploring flooded caves for scientific investigation, or for the search for and recovery of divers or, as in the 2018 Thai cave rescue, other cave users. 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.
Sheck Exley was an American cave diver. He is widely regarded as one of the pioneers of cave diving, and he wrote two major books on the subject: Basic Cave Diving: A Blueprint for Survival and Caverns Measureless to Man. On February 6, 1974, Exley became the first chairman of the Cave Diving Section of the American National Speleological Society. During his career, he established many of the basic safety procedures used in cave and overhead diving today. Exley was also a pioneer of extreme deep scuba diving.
Recreational diving or sport diving is diving for the purpose of leisure and enjoyment, usually when using scuba equipment. The term "recreational diving" may also be used in contradistinction to "technical diving", a more demanding aspect of recreational diving which requires more training and experience to develop the competence to reliably manage more complex equipment in the more hazardous conditions associated with the disciplines. Breath-hold diving for recreation also fits into the broader scope of the term, but this article covers the commonly used meaning of scuba diving for recreational purposes, where the diver is not constrained from making a direct near-vertical ascent to the surface at any point during the dive, and risk is considered low.
Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance. The name scuba is an anacronym for "Self-Contained Underwater Breathing Apparatus" and was coined by Christian J. Lambertsen in a patent submitted in 1952. Scuba divers carry their own source of breathing gas, usually compressed air, affording them greater independence and movement than surface-supplied divers, and more time underwater than free divers. Although the use of compressed air is common, a gas blend with a higher oxygen content, known as enriched air or nitrox, has become popular due to the reduced nitrogen intake during long or repetitive dives. Also, breathing gas diluted with helium may be used to reduce the effects of nitrogen narcosis during deeper dives.
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.
Wes Skiles Peacock Springs State Park is a 733-acre (297 ha) Florida State Park located on Peacock Springs Road, two miles (3 km) east of Luraville and on State Road 51, 16 miles (26 km) southwest of Live Oak, Florida. Activities include picnicking, swimming and diving, and wildlife viewing. Among the wildlife of the park are deer, bobcats, raccoon, squirrels, beaver and otters, as well as turkey, blue heron and barred owls. The park name commemorates the work of diver and explorer Wes Skiles. Prior to 2010 the park was known as Peacock Springs State Park. Amenities include a nature trail, six sinkholes, and Peacock and Bonnet Springs, with miles of underwater caves popular with cave divers. The two springs are tributaries of the Suwannee River. The park is open from 8:00 am till sundown year round.
Karst Underwater Research (KUR) is a registered 501(c)(3) non-profit organization that specializes in the research and documentation of karst aquifers and their corresponding surface features. KUR members perform a variety of scientific processes, including mapping and cartography, radio location, photography, videography, YSI water analysis and sampling.
Global Underwater Explorers (GUE) is a scuba diving organization that provides education within recreational, technical, and cave diving. It is a nonprofit membership organization based in High Springs, Florida, United States.
Tom Mount was an American pioneering cave diver and technical diver.
The Blue Hole of Santa Rosa, or simply the Blue Hole, is a circular, bell-shaped pool or small lake located along Route 66 east of Santa Rosa, New Mexico that is a tourist attraction and swimming venue, and one of the most popular dive destinations in the US for scuba diving and training. The Blue Hole is an artesian well and cenote that was once used as a fish hatchery.
Jarrod Michael Jablonski is a pioneering technical diver and record setting cave diver as well as an accomplished business owner and operator. These business operations include Halcyon Manufacturing, Extreme Exposure Adventure Center and Global Underwater Explorers. In July 2021 Jablonski launched and now operates the world's deepest pool at Deep Dive Dubai. Jablonski is one of the main architects behind the 'Doing It Right' system of diving.
Jill Heinerth is a Canadian cave diver, underwater explorer, writer, photographer and film-maker. She has made TV series for PBS, National Geographic Channel and the BBC, consulted on movies for directors including James Cameron, written several books and produced documentaries including We Are Water and Ben's Vortex, about the disappearance of Ben McDaniel.
Edd Sorenson is a technical cave diver known for numerous rescues of lost or trapped divers in the underwater caves of Florida, particularly in Vortex Spring and Blue Spring State Park. He is well known for being one of the most experienced cave divers in the world.
On August 20, 2010, Ben McDaniel, of Memphis, Tennessee, United States, was reported missing after employees in the dive shop at Vortex Spring, north of Ponce de Leon, Florida, noticed that his pickup truck had remained in the shop's parking lot for the previous two days. McDaniel, who had been diving regularly at the spring while living in his parents' nearby beach house, had last been seen by two of those employees on the evening of August 18, on a dive entering a cave 58 feet (18 m) below the water's surface. While he was initially believed to have drowned on that dive, and his parents still strongly believe his body is in an inaccessible reach of the extensive cave system, no trace of him has ever been found. The state of Florida issued his family a death certificate in 2013.
The history of scuba diving is closely linked with the history of the equipment. By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon dioxide is filtered from the exhaled breathing gas, which is then recirculated, and more gas added to replenish the oxygen content. Closed circuit equipment was more easily adapted to scuba in the absence of reliable, portable, and economical high pressure gas storage vessels. By the mid-twentieth century, high pressure cylinders were available and two systems for scuba had emerged: open-circuit scuba where the diver's exhaled breath is vented directly into the water, and closed-circuit scuba where the carbon dioxide is removed from the diver's exhaled breath which has oxygen added and is recirculated. Oxygen rebreathers are severely depth limited due to oxygen toxicity risk, which increases with depth, and the available systems for mixed gas rebreathers were fairly bulky and designed for use with diving helmets. The first commercially practical scuba rebreather was designed and built by the diving engineer Henry Fleuss in 1878, while working for Siebe Gorman in London. His self contained breathing apparatus consisted of a rubber mask connected to a breathing bag, with an estimated 50–60% oxygen supplied from a copper tank and carbon dioxide scrubbed by passing it through a bundle of rope yarn soaked in a solution of caustic potash. During the 1930s and all through World War II, the British, Italians and Germans developed and extensively used oxygen rebreathers to equip the first frogmen. In the U.S. Major Christian J. Lambertsen invented a free-swimming oxygen rebreather. In 1952 he patented a modification of his apparatus, this time named SCUBA, an acronym for "self-contained underwater breathing apparatus," which became the generic English word for autonomous breathing equipment for diving, and later for the activity using the equipment. After World War II, military frogmen continued to use rebreathers since they do not make bubbles which would give away the presence of the divers. The high percentage of oxygen used by these early rebreather systems limited the depth at which they could be used due to the risk of convulsions caused by acute oxygen toxicity.
The following index is provided as an overview of and topical guide to underwater diving:
The 1973 Mount Gambier cave diving accident was a scuba diving incident on 28 May 1973 at a flooded sinkhole known as "The Shaft" near Mount Gambier in South Australia. The incident claimed the lives of four recreational scuba divers: siblings Stephen and Christine M. Millott, Gordon G. Roberts, and John H. Bockerman. The four divers explored beyond their own planned limits, without the use of a guideline, and subsequently became lost, eventually exhausting their breathing air and drowning, with their bodies all recovered over the next year. To date, they are the only known fatalities at the site. Four other divers from the same group survived.
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.
