Hello Guys! How are you all. I hope you all are healthy and safe in your life. 

So I  am back with a new interesting blog. So without wasting time let's get started.

In this blog we are going to talk about the deepest hole in the world which is located in south china sea. This Hole is called Dragon hole because of its huge size but this hole is also know as Yongle Blue hole after the third Ming emperor.

Dragon Hole is the deepest known blue hole is the world  at 300.89 meters deep and is located about 25 kilometers south if discovery Reef in the Paracel Island in  the south china sea. 

The dragon blue hole generates a distinctive blue colour when seen from above. The local fisherman's of South china called dragon hole as “ Eye” of South China Sea because the shape of the hole looks like a human eye.

Scientists have found that there around 20 marine organisms living in the upper portion of the Dragon hole almost about 328 feet below that seawater in the blue hole had almost no oxygen and because of this there is very little life. 

Even if there are lives available in blue hole it is extremely dangerous to dive in blue hole. One of the reasons why it is dangerous to diving in blue hole because of the limited oxygen and sometimes there are even sulfuric waters found in blue hole. 

Well trained divers can make a journey to dragon  hole. In other cases, researchers park a boat right above the blue hole and send equipment down to measure depth, temperature, oxygenation and other factors in blue hole. 

The dragon hole in south china sea was formed in an environment that's very much similar to blue hole in the Bahamas. 

In July researches said that to protect the maritime environment in the south china sea, Sansha city that governs the dragon hole area issued a ban in October on fishing and tourism in and around dragon hole. 

How the blue holes are formed

Blue Holes are formed during past ice ages,  when sea level was as much as 100-120 meters.  In the past times these blue holes formations were targets of the same erosion from rain and chemical  common in all limestone-rich terrains.

That's it for today's blog i hope you will like the information provided.

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