Translation of "Waters" into Japanese

Through Stormy Seas to Calm Waters

荒れた海域を通り抜けて,穏やかな水域へ

For example, in some places there are rip currents caused by massive amounts of water moving toward shallow areas.

たとえば,浅い水域に向かって流れる大量の海水のために潮衝が生ずる所もあります。

They say amniotic fluid has roughly the same composition as sea water.

子宮内の羊水は、海水とほぼ同じ成分だそうです。