What: Master jibs from gunwales as you take to Lake Michigan on keelboats and dinghies.
Why: There she blows — your new summer hobby.
When: June 12-Aug. 22.
Where: Judd Goldman Sailing Center, Burnham Harbor, 1362 S. Linn White Dr., at Solidarity Dr. For info, call 312-742-7529. Register (starting Mon.) online at chicagoparkdistrict.com. Six-week session, $100-$450.
Chicago Improv Festival
What: More than 70 talents and ensembles — most from Chicago — perform sketches, monologues, and other acts of off-the-cuff craziness.
Why: An appearance by the long-beloved troupe The Reckoning.
When: Festival, Mon.-Sun. The Reckoning, Tues., 10 p.m.
Where: Venues vary. Tickets ($5-$20) and schedule online at chicagoimprovfestival.org.
What: No longer just for iPhones, the local start-up is now on the Web, offering members daily deals at chef-driven restos.
Why: A spring tasting menu with wine pairings at MK for just $45.
When: You want the hookup.
Where: Online at foodietheapp.com.
Trousseau Lingerie & Swim Closing Sale
What: Bid adieu to Southport’s lingerie and swimwear paradise with up to 80 percent off everything.
Why: Chantelle and Aubade underthings for skimpy prices.
When: Thru Apr. 25. Mon.-Fri., 11 a.m.-7 p.m.; Sat., 10 a.m.-6 p.m.; Sun., noon-5 p.m.
Where: 3543 N. Southport Ave., b/t Eddy & Addison Sts. (773-472-2727).
Earth Day Facial
What: Twenty-five blissful minutes of purifying, exfoliating, and replenishing masques — all using organic skin care products.
Why: For just $40, you’re out of the pore house.
When: Mon.-Thurs., 8 a.m.-8 p.m.
Where: Spa at Four Seasons Hotel Chicago, 120 E. Delaware Pl., at Michigan Ave. Appointments (required) at 312-649-2340.