That is something you do not hear every day but members of Ukraine's National School of Undewater Painting (yep, there is one) are all trained divers and...well.. artists. They use both skills (diving and painting) to create something that is at least original. Now imagine having to make a painting before the oxygen runs out. They usually make their pieces in about 40 minutes for safety reasons and work at depts of 2 to 20 meters.
They say that human eye is more sensitive to colours underwater.
Check some of their amazing paintings:
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