Editing Scuba set (section)

===Alternatives to scuba for diving===
There are alternative methods that a person can use to survive and function while underwater, currently including:
* [[free-diving]] – swimming underwater on a single breath of air.
* [[snorkeling]] – a form of free-diving where the diver's mouth and nose can remain underwater when breathing, because the diver is able to breathe at the surface through a short tube known as a [[Snorkel (swimming)|snorkel]].
* [[surface-supplied diving]] – originally, and still used in [[professional diving]] for long or deep dives, where an umbilical cable provides [[breathing gas]], voice communication and sometimes warm water to heat the [[diving suit]] from the surface. Some tourist resorts offer a surface-supplied air line diving system, trademarked as [[Snuba]], as an introduction to diving for the inexperienced. Using the same type of demand valve as scuba diving, the diver breathes from a compressed air cylinder carried on a free-floating raft at the surface, through a simple hose limiting the diver to a depth of 20–30 feet (6–9 m).
* [[atmospheric diving suit]] – a rigid articulated pressure resistant suit that isolates the diver from the surrounding water pressure.