skin-dive

1. Underwater swimming without any more breathing equipment than a snorkel (synset 100445636)
   is a type of: swim, swimming - the act of swimming
   subtypes:

   • scuba diving - skin diving with scuba apparatus
   • snorkel diving, snorkeling - skin diving with a snorkel
   same as: skin diving

1. Swim underwater with no breathing apparatus other than a snorkel (synset 201967137)
   referred to in: athletics, sport - an active diversion requiring physical exertion and competition
   is a type of: dive - swim under water

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