MILWAUKEE (AP) — Oversized mugs of beer clink together as drinkers sitting under a canopy of trees in a Milwaukee public park listen to live accordion music and proclaim "Prost!" — the German equivalent of "cheers." [...] regulars at the Estabrook Park Beer Garden in Milwaukee love that they can bring their picnic baskets of snacks to the lines of tables along the Milwaukee River and enjoy drinks in the short-lived warm summer air. Rich Dolesh, vice president for conservation and parks at the National Recreation and Parks Association, said many parks departments still ban alcohol, but have eased the rules for festivals, concerts, golf courses and weddings. While the big breweries moved years ago, beer is still ingrained here, with smaller breweries like Sprecher Brewing Co.