tree trunks at the bottom of a water hole, colors of the depths of the water with different shades of blue

abstract aqua aquatic background below blue bottom calm circle clean clear colors coral dark dcim104gopro deep depths different diving environment environmental hole lake light liquid marine natural nature nobody ocean powerful ray reservoir river round scene sea seascape shades summer sunlight sunray sunshine surface tranquility tree tropical trunks turbulent turquoise undersea underwater wallpaper water wave