We had our son's birthday party at the North Clackamas Aquatic Park last spring and it was a pretty cool party overall. The kids really enjoyed the wave pool, shhh as did I. They have a couple of slides, and a little kiddie pool/ fountain area so don't worry about bringing the little ones too. Get there early if you can to try and avoid the crowds. It was busy when we were there, and others suggested to go early next time.
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