The International Surfing Association (ISA) officially announced on November 12th that the Riviera Nayarit is hosting the 4th World Stand Up Paddle (SUP) and Paddleboard Championship, which will be held from May 10-17, 2015. This will be the first time that Mexico will host this competition and it will be in Sayulita, the Riviera Nayarit's Surf Cap…