What is snorkelling
snorkelling is a practice of swimming on or though a body of water while equipped with a diving mask, a shaped tube called a snorkel, and usually fins. In cooler waters, a wetsuit may also be worn. Use of this equipment allows the snorkeler to observe underwater attractions for extended periods of time with relatively little effort.
equipment including mask the snorkel the fins. A swimmer's snorkel is a tube typically about 30 centimeters long and with an inside diameter of between 1.5 and 2.5 centimeters, usually L- or J-shaped and fitted with a mouthpiece at the lower end, and constructed of rubber or plastic.
Snorkelers normally wear the same kind of mask as those worn by scuba divers. By creating an airspace, the mask enables the snorkeler to see clearly underwater
the deeper you go the more pressure there is and you need to equalise your ears or they will hurt you equalise by sweezing and then blowing through your nose
Underwater Science Dives Deep into Coral Reef Research
A scientist diver talks about his "office" 60 feet deep and why there's hope for coral reefs.
Around the world, The Nature Conservancy’s scientists conduct research in some very extreme conditions, including deep beneath the ocean’s surface.
Researching in an underwater laboratory takes a unique set of skills—you have to be an adept Scuba diver and a scientist at the same time, and be willing to share your “office” with sharks.