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: Çünkü okyanus devasa bir filtredir ve derinlere daldıkça  gördüğünüz renkleri kaybedersiniz ve her şey hızlıca karanlığa ve maviye dönüşür.