What is an international motorboat racing competition for powerboats organised by the Union Internationale Motonautique (UIM) and promoted by H2O Racing, hence it often being referred to as F1H2O that the 33rd season  consisted of seven races, beginning in Dubai, UAE on 4 March 2016, and ending in Sharjah? 
2016 F1 Powerboat World Championship:  The season consisted of seven races, beginning in Dubai, UAE on 4 March 2016, and ending in Sharjah, UAE on 16 December 2016, although initial plans indicated a ten race calendar. Formula 1 Powerboat World Championship: The Formula 1 Powerboat World Championship (also F1) is an international motorboat racing competition for powerboats organised by the Union Internationale Motonautique (UIM) and promoted by H2O Racing, hence it often being referred to as F1H2O.
Formula 1 Powerboat World Championship