There is an underwaterobstacle section. Participants have to hold their breath and make their way through the muddy, freezing water.
这里进行的是水下障碍物项目，挑战者必须屏住呼吸穿越冰冷的泥潭。
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Thee Olympic Games competitions prior to FINA had included a variety of unusual events such as underwater swimming (1900), 200m obstacle swimming (1900) and plunge for distance (1904).
The Olympic Games competitions prior to FINA had included a variety of unusual events such as underwater swimming (1900), 200m obstacle swimming (1900) and plunge for distance (1904).
在国际泳联成立之前，奥运会游泳比赛曾包含一些非惯例项目， chaussure pas che，如1900年奥运会上的潜泳、200米阻碍泳和1904年奥运会上的水上跳近等。