at what depth does water stop looking darker from above?

[Altruist]

With every other factor staying the same

Thread title + 1 sentence in the op = thread content

[MysteriousWeeb420]

with every other factor the same surely water depth makes no difference

[Altruist]

with every other factor the same surely water depth makes no difference

Cant we extrapolate that there should be a difference from comparing small depths? Take those first 20-30 m on the beach as an example; you can even spot the difference while standing in it

[brocode]

we cant see any light 800m below the ocean from the surface. i think thats where it becomes completely dark.

also probably why we have explored the space more than our oceans

[kathisterima]

I guess it depends on the source of light, like what time of the day it is, what latitude, how wavy the water is, how clean it is and maybe more. 

I think like 2m on the average beach you can't see from above, and it all looks the same, idk. 

But if what brocode said is true then the rocks or sand at the bottom shine back, so it must be somewhere inbetween 2 and 800.

[MysteriousWeeb420]

with every other factor the same surely water depth makes no difference

Cant we extrapolate that there should be a difference from comparing small depths? Take those first 20-30 m on the beach as an example; you can even spot the difference while standing in it

No, that's just because the deeper water has more impurities in it. They would both be crystal clear otherwise