Pan Zan
From Star Trek : Freedom's Wiki
Pan Zan is an Enolian sport, similar to Earth water polo.
When visiting Keto-Enol in 2152, Captain Jonathan Archer and Commander Tucker were invited to play pan zan. Captain Archer was particularly fond of it, as it was the closest thing to water polo he'd seen since they left Earth in 2151. (ENT: "Canamar")