What makes the Caribbean waters so turquoise/blue?

Answer 1

The most obvious answer is that it reflects the sky since you can see reflections of clouds also.White sunlight contains all colors.. Water absorbs some of these colors more than others. But you need a lot of water to notice this effect - which is why water cupped in your hand has no color at all. In a large body of water though, the water molecules quickly absorb red light, but they don't absorb blue light nearly
as well. So in this case, more blue light is transmitted through the water. It's actually the same principle behind why the sky is blue.The blue effect is often increased because ocean usually contains floating particles of dirt, and dead and living plants and animals. They help reflect the blue light back upward - so that the lake or ocean looks blue. The blue-green of tropical waters is due entirely to absorption of red light rather then suspension of particles. It's a different blue than the blue of the oceans off the northeast coast, whose blue is caused by suspended particles and plants.

Answer 2

I saw waters at a Tobago beach, called Bucco Reef, like what you are asking about.

It was a combination of the fine turquoise colour aquatic plant life, under the crystal clear waters, and covered by a beautiful bright blue sky.

At that time I taught that this could be heaven. Good luck.

Answer 3

The mineral content of the water along with the reflection of the blue sky.

Answer 4

the blue sky an because the water is clean an not full or garbage or oil