<P> Cave diving requires a variety of specialized procedures, and divers who do not correctly apply these procedures may significantly increase the risk to the members of their team . The cave diving community works hard to educate the public on the risks they assume when they enter water - filled caves . Warning signs with the likenesses of the Grim Reaper have been placed just inside the openings of many popular caves in the US, and others have been placed in nearby parking lots and local dive shops . </P> <P> Many cave diving sites around the world include open - water basins, which are popular open - water diving sites . The management of these sites try to minimize the risk of untrained divers being tempted to venture inside the cave systems . With the support of the cave diving community, many of these sites enforce a "no - lights rule" for divers who lack cave training--they may not carry any lights into the water with them . It is easy to venture into an underwater cave with a light and not realize how far away from the entrance (and daylight) one has swum; this rule is based on the theory that, without a light, divers will not venture beyond daylight . </P> <P> In the early phases of cave diving the analysis shows that 90% of accidents were not trained cave divers; from the 2000s on the trend has reversed to 80% of accidents involving trained cave divers . Modern cave divers' capability and available technology allows divers to venture well beyond traditional training limits and into actual exploration . The result is an increase of cave diving accidents, in 2011 the yearly average of 2.5 fatalities a year tripled . In 2012 fatalities reached the highest annual rate to that date at over 20 . </P> <P> As response to the increase in fatalities during the years 2010 onwards, the International Diving Research and Exploration Organization (IDREO) was created in order to "bring awareness of the current safety situation of Cave Diving" by listing current worldwide accidents by year and promoting a community discussion and analysis of accidents through a "Cave Diver Safety Meeting" held annually . </P>

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