Pool Sport
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2177, Puzzle 1 (Niagara Falls Tunnels).
Question is: Pool Sport
and the answer is: WATERPOLO
Word Meaning:
WATER POLO — A water sport consisting of two teams of swimmers who have to throw the ball into the opponent's goal.
Definitions from Wiktionary.