Great Wolf Lodge: Multiple Locations Nobody does indoor water park resorts like Great Wolf Lodge, which offers nearly two dozen locations across the U.S. (plus one in Canada).

The 300,000 square-foot development will include a 275-room Marriott hotel, 50,000 square-foot indoor water park and 50,000 square-foot Hollywood-themed experience—or “edutainment” center.

The Cascades Indoor Water Park, where it’s 84 degrees Fahrenheit all year, offers a solution—and more. For parents, the heated outdoor pool (100 degrees Fahrenheit!) is probably the best place to ...