In Japan there's a huge aquarium, actually the world's second largest behind the Georgia Aquarium in Atlanta, called Okinawa Churaumi Aquarium. The flagship of this aquarium is the main tank, called the Kuroshio Sea, that holds 7,500 cubic metres (1,981,000 USgal) of water and features an acrylic glass panel measuring 8.2 by 22.5 metres (27 by 74 ft) with a thickness of 60 centimetres (24 in), the largest such panel in the world when the aquarium was opened. Whale sharks and manta rays are kept alongside more than 60 other fish species.
In the video above you can see "The Kuroshio Sea" tank fimeld by Jon Rawlinson, a filmmaker based in Vancouver, Canada, specialized in documentary and commercial production.
My advice is to open the video full screen, with HD enabled and music on: you'll enjoy 5 minutes of pure relax in the middle of the ocean...
You can also download the following picture as a wallpaper clicking here