![Yu Yunzhi, 24, has built a seven-meter-deep pool for scuba diving in an office building in Hangzhou, East China’s Zhejiang Province. Yu scuba dived for the first time during a visit to Taiwan in 2014. Since then, she has continued her training and achieved the highest level of certification. (Photo/VCG)](http://www.ecns.cn/hd/2018/05/31/33010117463f4e5dbb32f094167e7791.jpg)
Yu Yunzhi, 24, has built a seven-meter-deep pool for scuba diving in an office building in Hangzhou, East China’s Zhejiang Province. Yu scuba dived for the first time during a visit to Taiwan in 2014. Since then, she has continued her training and achieved the highest level of certification. (Photo/VCG)
![Yu Yunzhi, 24, has built a seven-meter-deep pool for scuba diving in an office building in Hangzhou, East China’s Zhejiang Province. Yu scuba dived for the first time during a visit to Taiwan in 2014. Since then, she has continued her training and achieved the highest level of certification. (Photo/VCG)](http://www.ecns.cn/hd/2018/05/31/f221e1a6c28f4fa99155250f8fd0858d.jpg)
Yu Yunzhi, 24, has built a seven-meter-deep pool for scuba diving in an office building in Hangzhou, East China’s Zhejiang Province. Yu scuba dived for the first time during a visit to Taiwan in 2014. Since then, she has continued her training and achieved the highest level of certification. (Photo/VCG)
![Yu Yunzhi, 24, has built a seven-meter-deep pool for scuba diving in an office building in Hangzhou, East China’s Zhejiang Province. Yu scuba dived for the first time during a visit to Taiwan in 2014. Since then, she has continued her training and achieved the highest level of certification. (Photo/VCG)](http://www.ecns.cn/hd/2018/05/31/8bc97d112501458babe59f3fd93d4ed3.jpg)
Yu Yunzhi, 24, has built a seven-meter-deep pool for scuba diving in an office building in Hangzhou, East China’s Zhejiang Province. Yu scuba dived for the first time during a visit to Taiwan in 2014. Since then, she has continued her training and achieved the highest level of certification. (Photo/VCG)