The color of the Red Sea is normally an intense turquoise.

（Red Sea） 世界上海水最热的海，也是最年轻的海,世界最咸的海。红海位于非洲东北部与阿拉伯半岛之间，形状狭长，从西北到东南长1900公里以上，最大宽度306公里，面积45万平方公里。红海北端分叉成两个小海湾，西为苏伊士湾，并通过贯穿苏伊士地峡的苏伊士运河与地中海相连；东为亚喀巴湾。南部通过曼德海峡与亚丁湾、印度洋相连。是连接地中海和阿拉伯海的重要通道。是一条重要的石油运输通道。具有战略价值。

For ship captains, its known for its violent storms, as well as reefs and submerged islands, which can make it treacherous to navigate. To the rest of us, the Red Sea is one of the warmest, saltiest, and possibly reddest seas around. But does this body of water that extends from the Gulf of Suez and Gulf of Aqaba south to the Indian Ocean really glisten a rosy hue?

Not really. So where did it get its catchy name?

Occasionally, the sea becomes filled with blooms of cyanobacteria algae, called trichodesmium erythraeum, which, upon dying, turn the usually blue-green water, reddish-brown. The color is not intense and is said to vary across the expansive body of water.