Urban Chestnut celebrates its sixth anniversary this year, so of course a party will be held. Wolpertinger 17 (named after a mythical Bavarian creature) is a celebration of both the brewery and the entire St. Louis craft beer community. There will be beer from more than 35 local breweries, live music by Larry Hallar, Alp Horns and the Saint Boogie Brass Band, and traditional German cuisine, as well as some other food options, too. The star of the show is Urban Chestnut's Wolpertinger 2017, a seasonal dark beer that this year incorporates raspberries and was aged for two years in Scotch whiskey barrels. The party runs from 1 to 5 p.m. at Urban Chestnut Brewery & Bierhall (4465 Manchester Road; www.urbanchestnut.com). Tickets are $40, and you must have a ticket to enter (no payment at the door).