About two-thirds of the human body is composed of water, which explains why we can put out fires just by shouting at them. Revel in your main ingredient with today's Groupon: for $9, today's deal gets you a single all-day pass (an $18.02 value including HST) to Waves Indoor Waterpark, located at Americana Conference Resort and Spa in Niagara Falls. With a retractable roof, natural light aplenty, and water activities for all ages, Waves brings submersible fun to splashers in a temperature-controlled summery environment year-round. Little land-deniers can start their hydro-careers on the kiddy pool's slippery toddler slides or can join guardians for games in the activity pool. The interactive play structure with its tipping bucket and aqua accoutrements strikes boredom from the record, challenged only by three-storey tube-and-body slides for most entertaining apparatus. Adults and anyone keeping a coif from capsizing can keep 'dos and souls fresh in the hot spa that holds 16 regular people or any number of rule-breaking pirates.

Waves Indoor Waterpark will be closed on Tuesdays and Wednesdays through February 16.

Reviews

TripAdvisors give Americana Conference Resort and Spa an average of three owl eyes:

• I would recommend this place for a small young family looking for a vacation with some excitement. It has a nice kiddy area with large bucket and mini waterslides, a wave pool- and then for the bit older kids 4 waterslides that I thought were fun to go down as an adult. – Point30
• …we couldn't have been happier with the waterpark. I have 2,5 and 6 year olds and the rides were perfect for them. – woodisgood