Also known as: フリーダイビング, スキンダイビング, 素潜り
Swimming or Diving Underwater without the aid of a breathing device, by holding one's breath instead of using Scuba gear.
Also known as: フリーダイビング, スキンダイビング, 素潜り
Swimming or Diving Underwater without the aid of a breathing device, by holding one's breath instead of using Scuba gear.
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