Wallpaper with Blue Hole, Palau
What's on image?
Earlier sea level was lower than now and in the limestone sediments of Palau Islands started karst processes - formed caves.
Now, as the sea level has rised, these cavevs are inundated and provide excellent diving experience.
When you will click the link, image will be downloaded in “Downloads” folder of your computer. Find it there and rightclick the file, select - “Set as desktop background”.