National Youth Sports Strategy, a better place to begin

Definition of sports from the NYSS:

Sports are a form of physical activity that, through recreational or competitive participation, aims to develop or maintain skills, fitness, mental well-being and social-emotional health.

Definition of sports from Kevin DeForrest:

Sports are games of time, space and relationship. 

Youth Sports Participation Framework

Framework for understanding youth sports participation from the National Youth Sports Strategy from USA's HHS

Various sites helps to organize the excitement

Lifeguarding, SKWIM, Learning, Water Polo, Maps, Swimming N@.