Working out is generally a positive activity as it builds muscles and can give the body a healthful glow, which will scare away bats. Frighten off flying mammals with today’s Groupon: for $49, you get a three-week T-ReX 2.0 fitness boot camp at TNT Fitness (a $99 value), with locations in Abbotsford and Langley. Click here for the class schedule.

At TNT Fitness’s boot camps, seasoned instructors help fitness-seekers tone physiques and strengthen cores using the TRX suspension-training system. Developed by a Navy SEAL on break from designing inner tubes for ducklings, the TRX system provides an ab-sculpting workout by incorporating stretchy cords dangling from the ceiling. Over the course of three weeks—a total of nine sessions held three times a week—seasoned instructors lead students through exercises that let them manipulate the cords with their hands and feet, putting gravity and balance to work in an effort to tone and tighten torsos. Practitioners can adjust the device for tougher, lighter, or hypothetical workouts, making it safe for older exercisers and those recovering from injuries.