Natural phenomenon

Natural phenomenon: Glowing blue water washes up on a beach in Vaadhoo, one of the Raa Atoll islands in the Maldives. The result of a chemical reaction called bioluminescence, it occurs when a micro-organism in sea water is disturbed by oxygen

Although a rare sight on a shoreline, the phenomenon is more commonly seen at sea in the wake of ships that stir up the oxygen in the sea, which causes the bioluminescent bacteria to glow.
Many undersea organisms ‘glow’, especially creatures that live at depths where light from the surface is less likely to penetrate.
The night-time glow is a side-effect of blooming red algae, known as red tide, which can turn entire beaches scarlet and murky during the day.
 

 Danxia Landform

This is a unique geological phenomenon known as a Danxia landform. These phenomena can be observed in several places in China. This example is located in Zhangye, Province of Gansu. The colour is the result of an accumulation for millions of years of red sandstone and other rocks.