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A margarita special, free dance lessons and more things to do in Chicago this weekend, Sept. 11-13.

EAT

Fit Foodie 5K

Jackson Park

6300 S. Lake Shore Drive 619-312-1212

Race along Lake Michigan, then sample food and drinks and watch cooking demonstrations from the Food Network’s Dan Smith and Steve McDonagh and Cooking Light executive chef Anna Bullett. Proceeds benefit the American Diabetes Association. 7-10:30 a.m. Saturday. $55. Register: fitfoodierun.com

DRINK

Four-Year Anniversary

Cantina Laredo

508 N. State St. 312-955-0014

The River North restaurant celebrates by offering its signature Casarita margarita, normally $9.25, for $4. 11:30 a.m.-10 p.m. Sunday.

Country Crawl

John Barleycorn

3524 N. Clark St. 773-549-6000

Don some cowboy boots for a crawl to four Wrigleyville bars. Tickets include a breakfast buffet and T-shirt. 11 a.m.-6 p.m. Saturday. $20. Tickets: chicagocountrycrawl.com

DO

Chicago German-American Fest (Free!)

Lincoln and Leland Avenues

Lincoln Square’s 95th annual bash features German food, Hofbrau Original and PBR beer, a parade (2 p.m. Saturday), games and German music. 5-11 p.m. Friday, noon-11 p.m. Saturday and noon-10 p.m. Sunday. Free.

Open House (Free!)

Duet Dance Studio

2515 W. North Ave. 312-823-8199

Try swing (noon), salsa (1 p.m.) and wedding dance (2 p.m.) classes for beginners at the West Town studio. Noon-3 p.m. Saturday. Free. RSVP: duetdancestudio.com

Yoga Market (Free!)

Two North Riverside Plaza

Take a vinyasa flow class from VibeUP, browse produce from Whole Foods and try samples from Passion House Coffee Roasters, DavidsTea and other vendors. 7:30 a.m., 9 a.m. and noon Friday. Free. Donations benefit the Illinois Patriot Education Fund.

Mayhem

The Mid

306 N. Halsted St. 312-265-3990

London-based house duo Dusky performs along with Bwana, Zebo, Steve Gerard and Cinna. 10 p.m.-4 a.m. Friday. $10-$20. Tickets: themidchicago.com

Mayday

The Abbey Pub

3420 W. Grace St. 773-478-4408

Catch sets from the Miami-based hip hop group plus Kap Kallous and local acts. 7:30 p.m. Friday. Doors open at 7 p.m. $15. Tickets: theabbeychicago.com

HAPPY HOUR OF THE DAY

Get well drinks, domestic drafts and one food item for $25 from 6-9 p.m. Friday at Flagship (1622 W. Belmont Ave. 773-281-3805) or upgrade to call drinks and domestic drafts and bottles for $30.