It's now commonplace for malls to include play areas, where exhausted or exasperated parents can turn their progeny loose for a few minutes. But most of these kid-friendly zones are inside, fairly modest in size and encourage scrambling on vinyl-covered doodads that are supposed to be hygienic but don't look that way. Denver Premium Outlets, in contrast, has created an enormous outdoor space covered with artificial turf and loaded with a slew of different diversions — elaborate climbing structures with clubhouse-like platforms, crazy slides, interactive contraptions and more. It's certainly more enjoyable in warm weather than cold, but when the sun is shining and your little ones desperately need to burn off some energy, this attraction offers plenty of fun, with no purchase necessary.