Incredible Dog Challenge When: 8:30 a.m. (doors open), 1 p.

m. (“best visuals”) Sept. 27; 9 a.

m. (doors open), 10:45 a.m.

(“best visuals”) Sept. 28 Where: Purina Farms, 500 William Danforth Way, Gray Summit How much: Free, $5 parking More info: purina.com/purina-farms It’s the national finals of the Purina Pro Plan Incredible Dog Challenge, with dogs from 20 states and provinces competing in activities that, frankly, some humans can’t do: Frisbee routines, pole racing, agility courses and dog-diving into a pool.

Who’s a good boy? By Daniel Neman St. Charles Oktoberfest When: 4-11 p.m.

Sept. 27, 10 a.m.

-11 p.m. Sept.

28, 10 a.m.-5 p.

m. Sept. 29 Where: Frontier Park, St.

Charles How much: Free More info: saintcharlesoktoberfest.com The town founded in 1769 as Les Petite Côtes has had a big Oktoberfest celebration since 1986. Along with beer and German music and dancing, there will be a brat-eating contest, a stein-holding contest, a wiener dog derby (Wiener Takes All), a 5K and 10K race, an antique car show and more beer.

By Daniel Neman Fest-of-Ale When: 6-9 p.m. Sept.

27 Where: Missouri Botanical Garden, 4344 Shaw Boulevard How much: $50, $40 garden members, $15 designated drivers More info: missouribotanicalgarden.org It isn’t just a festival, it’s a fest-of-ale. Meaning more than 20 local breweries will be offering samples of their beers.

There will be food to wash down all that ale, plus music by Wax Museum. By Daniel Neman The War and Treaty When: 8 p.m.