Spooky Splash Pool Party 31 Oct 2026 Trick or treat, swim or splash! Ghoulishly good Halloween fun with slides, games, themed raffle, sausage sizzle, and more. $10 per person. H₂O Xtream Aquatic Centre, 26 Brown Street, Upper Hutt 5018 Tagged as: , Kids and Families, Teens, Themed Event, Weekend Event