Contrary to what one might assume, rock climbing is not the opposite of rock tumbling, though it is still inadvisable to enjoy both activities concurrently. Learn to tumble upwards with today's Groupon: for $69, you get an introductory lesson and a one-month indoor rock-climbing membership to True North Climbing (up to a $169.50 value, including HST), located in Downsview Park Sports Centre on Carl Hall Road.

True North Climbing's helpful staff and professional indoor rock-climbing facilities encourage vertical scramblers of all skill levels to engage in enjoyable, unconventional exercise. During a one-hour intro lesson, helpful rope wranglers acquaint the uninitiated with the basics: how to safely yet fashionably don a harness, how to knot up the rope like a competitive pretzel maker, and how to confidently operate the belay device. After your lesson, scale the walls as long as you would like to pop-quiz bodies on newfound knowledge and skills. Rental of climbing shoes and harness are included in the lesson, as well as for the one-month membership.

Endorphin enthusiasts looking to upkeep sweating routines can spend a month scaling True North’s sturdy walls as well as their adrenalin-amping stalactite. The facilities include 50 top ropes, a large top-out bouldering area, and indoor slacklines for when arms refuse to cooperate with the mind's goals and impulsively want to fist pump.

Reviews

Multiple media outlets have featured True North Climbing, including the Toronto Star, Inside Toronto.com, Ontario Climbing, and Yonge Street Media. More than 650 Facebookers are fans of the climbing facility.

• When climbers arrived they were presented with a colourful variety of walls, each presenting different challenges. The most striking feature of the gym is a giant stalactite, stretching from the 36-foot-high ceiling down to its point, a few feet from the ground. – Eric Heino, Inside Toronto