Underwater Backgammon World Championship 2010- Zakynthos, Greece. This is the third year running of the backgammon world championships – under water with scuba gear in the Mediterranean Sea. In the finals – only budding breathing. NOT FOR THE FAINT HEARTED!!! Check out our videos of the 2008 and 2009 Underwater Backgammon World Championships here on youtube or at our website: www.underwaterbackgammon.com.