Absentees: Siwon
- Two team separation (One to use props to breathe underwater and Two to exchange air underwater)
- Team One: Leeteuk, Heechul, Shindong, Donghae, Kibum, Kyuhyun
- Team Two: Han Geng, Yesung, Kangin, Sungmin, Eunhyuk, Ryeowook
- Team One contend against a Synchronized swimmer.
- Team One Method: A material object to seal in air.
- Team Two: Mouth-to-mouth.
