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What are the different kinds of scuba diving?
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1.  Open Water Scuba Diving – This is the most popular form of scuba diving, and involves going to a dive site with an instructor and swimming around in open water.
2.  Nitrox Scuba Diving – Nitrox is a mixture of oxygen and nitrogen that allows divers to stay underwater for longer periods of time without becoming hypoxic (low oxygen levels).
3.  Snorkeling – Snorkeling is a great way to get a taste of what it's like to dive without having to go all the way underwater.
4.  Wreck Diving – Wreck diving involves exploring sunken ships or other underwater structures.