The dog days are here. The heat of July and August stretch ahead, you are hot and sticky, and if you have kids they are starting to drive you nuts. What you need is a magic place where everything’s wet and cool and happy. It’s called Mazagua. The waterpark has been a popular cooloff spot since 1989, and just stepping inside makes you feel cooler and happier. Water, water, everywhere, and a big swell of childish laughter. The park is toddler-friendly: many of the pools have gently sloped aprons that create safe shallows and a winding canal has currents that gently move tots along on inflated toys. An artificial wave generator tosses surf onto a sloped cement “beach” which gives the little ones safe shallows (free of jellyfish, sand, and sea monsters) while older kids can romp in the waves. One pool features diving boards, cable slides that dump into deep water, and a “waterfall” that dumps a stream right over the head of anyone needing a brain massage. A large area looks like a Disney village with animal waterspouts and lots of safe sluices shaped like whales and dolphins. But the main events are the slides, and there are all kinds of them at many levels of thrill. Inner tube “rivers” alternate short slides with pools for bobbing and regrouping. Kids lie on mattresses to wallop down the whoopdees of several “toboggans”. Open “luge” chutes spiral down “mountain sides”, allowing sliders to slalom up the walls before splashdown. And there are twisting, plunging tubes where you often hear the echoing screams of some little girl before she erupts from the muzzle in a shower of spray. A spiral ramp leads up the Tower,