![A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/9370ca454a034cd78cc8fc14b00e598a.jpg)
A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/85b71a73a49b4834abcacc83eb6e13fe.jpg)
A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![An exhausted participant breathes oxygen after finishing a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/e4dd4c4dc7d34cb5af00d9bc157f63e8.jpg)
An exhausted participant breathes oxygen after finishing a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![An exhausted participant breathes oxygen after finishing a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/e27b3cce29eb419c96a785b61b1cd079.jpg)
An exhausted participant breathes oxygen after finishing a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/26b3ae015c504220bc7db899fcf3e560.jpg)
A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/d5a563330f884456946d85e76bb71645.jpg)
A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/dcfa7a0b08bc4a6f96ddba7e5014fe48.jpg)
A participant competes in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![Participants compete in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/687d47c046f143038405b012f7137821.jpg)
Participants compete in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![Participants compete in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/0ae593d568804c03889c1126ead6ddfb.jpg)
Participants compete in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)
![Participants compete in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)](http://www.ecns.cn/hd/2018/06/25/dd9c665896f447ad99eb42c751e31933.jpg)
Participants compete in a swimming race across the Yellow River in Xunhua Salar Autonomous County, Northwest China’s Qinghai Province, June 24, 2018. The race on China’s second longest river was 500 meters long. (Photo: China News Service/Zhang Tianfu)