Fishing and hunting are most feared when encountering turbid sea waters and rough waves.
Fishermen pay attention to the weather and ocean currents, and through Lu Zheqiang's recommendation, Chu Mingcheng downloaded an app specially designed to discern sea and water conditions.
The underwater ecology of our country's coastal waters is very poor, with various kinds of pollution and freshwater runoff accompanying flash floods, resulting in a serious siltation of the seabed.
Simply put, other countries have crystal-clear seabeds like what you see now in Xisha.
Whereas the seabed in most of our areas is composed of sand and mud, with marine debris and various impurities visible everywhere when swimming in the water.
In such situations, the speed and volume of ocean currents and the strength of the wind have the most significant impact on the water's visibility.
Thanks to Chu Mingcheng's ease in swimming, his underwater visibility was a bit clearer and further than others.