You might be familiar with Water Polo. A bizarre game where a bunch of wet folks try to throw a ball into a goal. The players chase around a rubber or a nylon ball. The balls get bigger in size as you get older. The balls start at size one all the way up to size five for adult men who like to play with the biggest balls while frolicking in the water.
What you might not realise is that in Water Polo the players are riding around on Seahorses.