The series revolves around the Mizuki Diving Club (MDC), which is on the verge of closing down after having financial troubles. The club's new coach persuades the club's parent company to stay open on one condition: that the club sends one of its members to next year's olympics as part of Japan's olympic team.
Runtime: 25 minutes
DIVE!! - Deep diving - Netflix
Deep diving is underwater diving to a depth beyond the norm accepted by the associated community. In some cases this is a prescribed limit established by an authority, and in others it is associated with a level of certification or training, and it may vary depending on whether the diving is recreational, technical or commercial. Nitrogen narcosis becomes a hazard below 30 metres (98 ft) and hypoxic breathing gas is required below 60 metres (200 ft) to lessen the risk of oxygen toxicity. Professional divers may use an atmospheric diving suit that allows very deep dives of up to 610 metres (2,000 ft). For some recreational diving agencies, Deep diving, or Deep diver may be a certification awarded to divers that have been trained to dive to a specified depth range, generally deeper than 30 metres (98 ft). However, the Professional Association of Diving Instructors (PADI) defines anything from 18 metres (60 ft) to 30 metres (100 ft) as a “deep dive” in the context of recreational diving (other diving organisations vary), and considers deep diving a form of technical diving. In technical diving, a depth below about 60 metres (200 ft) where hypoxic breathing gas becomes necessary to avoid oxygen toxicity may be considered a “deep dive”. In professional diving, a depth that requires special equipment, procedures, or advanced training may be considered a deep dive. Deep diving can mean something else in the commercial diving field. For instance early experiments carried out by Comex S.A. (Compagnie maritime d'expertises) using hydrox and trimix attained far greater depths than any recreational technical diving. One example being the Comex Janus IV open-sea dive to 501 metres (1,644 ft) in 1977. The open-sea diving depth record was achieved in 1988 by a team of Comex divers who performed pipeline connection exercises at a depth of 534 metres (1,752 ft) in the Mediterranean Sea as part of the Hydra 8 programme. These divers needed to breathe special gas mixtures because they were exposed to very high ambient pressure (more than 50 times atmospheric pressure). An atmospheric diving suit allows very deep dives of up to 2,000 feet (610 m). These suits are capable of withstanding the pressure at great depth permitting the diver to remain at normal atmospheric pressure. This eliminates the problems associated with breathing high-pressure gases.
DIVE!! - Ultra-deep diving - Netflix
Amongst technical divers, there are divers who participate in ultra-deep diving on SCUBA below 200 metres (660 ft). This practice requires high levels of training, experience, discipline, fitness and surface support. Only twelve persons are known to have ever dived below a depth of 240 metres (790 ft) on self-contained breathing apparatus recreationally. That is the same number as the number of people who walked on the moon. The Holy Grail of deep scuba diving was the 300 m (980 ft) mark, first achieved by John Bennett in 2001, and has only been achieved five times since. The difficulties in relation to ultra-deep diving are numerous. Although commercial and military divers often operate at those depths, or even deeper, they are surface supplied. All of the complexities of ultra-deep diving are magnified by the requirement of the diver to carry (or provide for) their own gas underwater. These leads to rapid descents and “bounce dives”. Unsurprisingly, this has led to extremely high mortality rates amongst those who practise ultra deep diving. Notable ultra deep diving fatalities include Sheck Exley, John Bennett, Dave Shaw and Guy Garman. Mark Ellyatt, Don Shirley and Pascal Bernabé were involved in serious incidents and were fortunate to survive their dives. Despite the extremely high mortality rate, the Guinness Book of World Records continues to maintain a record for scuba diving (although in deference to the death rate it has stopped recording the record for deep diving on air). Amongst those who do survive significant health issues are reported. Mark Ellyatt is reported to have suffered permanent lung damage; Pascal Bernabé (who was injured on his dive when a light on his mask imploded) and Nuno Gomes reported short to medium term hearing loss. Serious issues which confront divers engaging in ultra-deep diving on self-contained breathing apparatus include: High-pressure nervous syndrome (HPNS). HPNS, brought on by breathing helium under extreme pressure causes tremors, myoclonic jerking, somnolence, EEG changes, visual disturbance, nausea, dizziness, and decreased mental performance. Symptoms of HPNS are exacerbated by rapid compression, a feature common to ultra-deep “bounce” dives. Decompression algorithm. There are no reliable decompression algorithms tested for such depths on the assumption of an immediate surfacing. Almost all decompression methodology for such depths is based upon saturation, and calculates ascent times in days rather than hours. Accordingly, ultra-deep dives are almost always a partly experimental basis. In addition, “ordinary” risks like gas reserves, hypothermia, dehydration and oxygen toxicity are compounded by extreme depth and exposure. Much technical equipment is simply not designed for the necessarily greater stresses at depths, and reports of key equipment (including submersible pressure gauges) imploding are not uncommon. Verna van Schaik in 2004 set the Guinness Woman's World Record for the deepest dive with a dive to 221 metres (725 ft) in Boesmansgat cave. Claudia Serpieri in 2000 reached 211 metres (692 ft), the deepest sea dive by a woman. Tatiana Oparina in 2015, reached 156 m in Lake Baikal, the deepest dive in extreme cold water (+3C) by a woman.
DIVE!! - References - Netflix