Belmont, MA Indoor Activities

Boston Bowl buffs and polishes 20 lanes to accommodate fat tenpins and 14 lanes for their thin, stern candlepin cousins, ensuring smooth trips for the spherical projectiles eager to greet them. While groups of two and clans of four frolic beneath a multicolored bowling mural, automated scoring screens dutifully account for every pin conquered, awarding extra points for any particularly stinging impression of another bowler's form.

Master dance moves that don’t involve mimicking sprinklers, teen wolves, or robots with today’s Groupon. For $25, you get six dance classes at The Studio: A Dance Center for Adults in Brookline’s Coolidge Center (a $90 value). Your Groupon is good for any combination of ballet, jazz, modern, and tap classes but cannot be used for the Lambada, the forbidden dance, or the Sneaky Elbow, the really forbidden dance. Buy two Groupons, and get 12 classes for yourself.

Today's side deal stages A Midsummer Night's Dream in the fashion that Shakespeare had always intended it to be staged—with mirror balls, roller skates, feather boas, skimpy costumes, and pounding disco anthems. For $18, you get one ticket in the "Dance Floor" section to see the American Repertory Theater's Donkey Show at the OBERON in Cambridge. This ticket can be used for shows on: 1/29 (8 p.m.), 1/30 (8 p.m. or 10:30 p.m.), 2/5 (8 p.m.), 2/6 (8 p.m. or 10:30 p.m.), 2/12 (8 p.m.), or 2/13 (8 p.m. or 10:30 p.m.). Call or drop by the box office at least 24 hours before your desired showtime to reserve your ticket. You must be 18 or older to attend.

Founded in 2007, A Far Cry is a self-conducted chamber orchestra made up of 17 young professional pluckers and bow-wielders, known as the Criers, who have played alongside cellist Yo-Yo Ma and rock band This Will Destroy You within the last month. The New York Times proclaims that the orchestra “brims with personality” that yields “performances of such passionate involvement,” and the Boston Globe writes that "members of the conductor-less string orchestra love nothing more than to throw themselves into a musical phrase with vital conviction." The collective pushes the boundaries of orchestra repertoire, eschewing the tradition of smashing their instruments on a gong after each performance while favoring collaboration and rotating leadership. This particular program features Shostakovich’s dark Eighth Quartet, John Adams’s Shaker Loops, and the premiere of double concerto K2, with fiddler Kip Jones and bassist Karl Doty. Racking up more than 200 of those performances so far, the ensemble has also released three albums and is the chamber orchestra in residence at the Isabella Stewart Gardner Museum, which often entails serving as live statues to fill in for artwork that’s being restored.

Strictly Sail Chicago, the largest indoor boat show in the United States, brings the sails to the stage for its 16th year at Navy Pier. With more than 250 global vendors, designers on-hand to answer questions, and a veritable storehouse of sailing gear, accessories, and hardware, watercraft enthusiasts will find everything they need to set aside their aquaphobic doubts and explore the beauty of sailing and the mysteries of sea legs. Sit in on one of the many seminars that are included with admission, such as Cruising the Bahamas, A Sailor Looks at Leadership, or Hey! Is That a Kraken!?—all of which are led by some of the world's leading sailors—then stop in at the sailing pond to re-create the Battle of Trafalgar with remote-control boats. Those who choose the membership option enjoy entry to the members-only lounge, which features a coat check, a cash bar, munchies, and Internet access.

If your body needs a guiding hand, let Rock City's certified Pilates instructors introduce you to one of the universe's most popular forms of exercise next to jogging and cow tipping. Through 12 matwork classes ($150 value), you will simultaneously stretch and strengthen your core (abs, back, and obliques) while using small pieces of equipment such as bands and balls to strengthen your arms, shoulders, shouldarms, and legs.