Like Tang or synchronized swimming, parks greatly benefit from the addition of water. Splash around in liquid fun with today’s Groupon: for $99, you get a lake-view room with two queen-size beds, five water-park passes, one pizza from Franny's Famous Pizza, four sodas, and $10 credit to the arcade at Edgewater Resort and Waterpark Hotel and Conference Center in Duluth (a $247 value).

A year-round entertainment oasis, Edgewater Resort complements its newly renovated 35,000-square-foot indoor water park with a crop of relaxing rooms overlooking Lake Superior. Remain completely immobile on the 400-foot lazy river before jolting your adrenaline gills into sputtering action with a ride down two four-and-a-half-story water slides. Adults can unwind in the hot tub or exercise facility while kids wait excitedly for 300 gallons of water to splash down on their expectant heads every few minutes in the Splash in Paradise playground. Pizza and soda ramp up flagging energy levels during arcade graveyard shifts, while two queen-size beds, high-speed Internet access, and a slew of other amenities welcome weary thumbs come morning. Subject to availability, Groupon visitors can upgrade to a suite at check-in or upon reservation for $20.

Reviews

TripAdvisors give Edgewater Resort and Waterpark Hotel and Conference Center an average of 3.5 owl eyes:

• I would most definitely recommend this hotel to anyone with kids. The waterpark was great and there is an arcade and snack bar/grill right in the waterpark. – KiKi1963_10
• Staff was friendly, room was comfortable and the water resort was really fun for the kids (and us). – NanaSue04