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2. Dive light - Wikipedia

   en.wikipedia.org/wiki/Dive_light

   Backup lights are carried in case the primary light fails during the dive. This is particularly important in cave and wreck penetration diving, where the light is required to facilitate navigation out of the enclosed space. Cave divers are trained to carry three dive lights as a result of an accident analysis by Sheck Exley published in 1977 ...

3. Recreational dive sites - Wikipedia

   en.wikipedia.org/wiki/Recreational_dive_sites

   Wall diving is reef diving where the main characteristic of the site is that the terrain is predominantly near vertical. It is basically an underwater cliff. The height of the wall can vary from a few metres to hundreds of metres. The top of the wall must be within diving depth, but the bottom may be far below or reasonably close to the surface.

4. Dutch Springs - Wikipedia

   en.wikipedia.org/wiki/Dutch_Springs

   Since 1980, a commercial recreation area, with facilities for scuba diving, has operated at the location. Lake Hydra had planned on selling the property to a warehouse company and it was expected to close operations. [1] [2] In 2022 the Dutch Springs commercial diving and training facility was reopened under the name "Lake Hydra". [3]

5. Outline of recreational dive sites - Wikipedia

   en.wikipedia.org/wiki/Outline_of_recreational...

   Wall diving is a form of reef diving, where The main characteristic of the sites is that the terrain is predominantly near vertical. The height of the wall can vary from a few metres to hundreds of metres. [1] The top of the wall must be within diving depth, but the bottom may be far below or reasonably close to the surface.

6. Diving activities - Wikipedia

   en.wikipedia.org/wiki/Diving_activities

   The standard procedures and activities essential to safe diving in the chosen diving mode, using the chosen diving equipment, and in the chosen diving environment are inherently part of the activities of a dive. Monitoring the dive profile, gas supplies, decompression status, relative positions of the divers and communication associated with ...

7. Night diving - Wikipedia

   en.wikipedia.org/wiki/Night_diving

   A backup light can be useful if the primary light fails, [9] and is essential if doing a decompression dive without a dive computer which can be read in the dark. There are several advantages to night diving at a site that is familiar from diving there during the day. The diver who is more familiar with the site is less likely to be disoriented ...