english: It's because the ocean is this massive filter, and as soon as you start going underwater, you're going to lose your colors, and it's going to get dark and blue very quickly.
non_english: То је због тога што је океан огроман филтер, те ћете, чим кренете да урањате у воду, престати да видите боје и убрзо ће све постати мрачно и плаво.