Most of the surface is a sheet of light blue, and you can't see through it, even though the water is clear. But right above you, there's a round window of transparency.

The reason for the blue water -- bioluminescence. According to Texas A&M at Galveston, it can be seen if the conditions are just right.

If you are headed to Myrtle Beach this weekend or this summer you are probably wondering if the water will be as blue and clear as it was last summer. (Video above is from 2023) During the summer ...

Why is Galveston water blue? Texas extreme weather and data scientist in Galveston, weighs in on the color changes.

Geologists discovered a new blue water spring at Yellowstone National Park that likely formed after a series of "mildly explosive events," the United States Geological Survey said.

Blue/clear - Light winds allowing sediment to retreat, or winds from the south that push high-salinity water up the coast Green - Likely the presence of organic phytoplankton ...