Skin-diving is swimming under the water with only light breathing gear — a mask, a snorkel, sometimes a small air tank — but without a thick protective suit. You feel the water on your skin, which is how the name arose.

Skin-diving is skin-diving指的是 swimming under the water with only light breathing gear 只帶輕便呼吸裝備潛到水裡游——a mask, a snorkel, sometimes a small air tank 像面鏡、呼吸管，有時候還有一個小氣瓶——but without a thick protective suit 但不穿厚重的防護衣。You feel the water on your skin 你能感覺到水直接碰到皮膚，which is how the name arose 這個名字就是這樣來的。

People do it to look at fish and reefs in warm, clear water.

People do it to look at fish and reefs in warm, clear water 大家這樣做是為了在溫暖清澈的水裡看魚和珊瑚礁。

Though actually, in real talk the line is messy: many people now just say snorkeling if they stay near the top with a tube, or scuba if they carry tanks. Skin-diving is the older sport name for going under with light gear and no wetsuit. It is not holding your breath with no air at all (free-diving), and it is not heavy diving in a full suit.

Though actually, in real talk the line is messy 但其實實際講話時，界線很模糊：many people now just say snorkeling if they stay near the top with a tube 現在很多人如果只是浮在水面附近用呼吸管，就直接說snorkeling，or scuba if they carry tanks 如果背氣瓶就說scuba。Skin-diving is the older sport name skin-diving是比較舊的運動名稱 for going under with light gear and no wetsuit 指帶輕便裝備、不穿潛水衣潛下去。It is not holding your breath with no air at all (free-diving) 它不是完全不帶氣、閉氣潛水（free-diving），and it is not heavy diving in a full suit 也不是穿全套裝備的重裝潛水。