If the Indiana Jones films have taught us anything, it is that in order to have a successful teaching career, one must train one’s upper body to be adept at dangling. Channel your inner action hero with today’s Groupon: for $25, you get an introductory lesson package at True North Climbing (a $50 value). The package includes:

• One-hour introductory lesson
• Two-week gym membership
• Equipment rental<p>

True North Climbing safely harnesses apprentice ascenders as they scale the indoor gym’s walls towering up to 36 feet overhead. During one-hour introductory lessons, instructors teach beginning pupils proper application of climbing harnesses, tying approved safety knots, and operating a belay device to manage ropes for mountaineering partners or pet koalas training for Everest expeditions. Two-week memberships commence during the patron’s next gym visit, where they can strap on complimentary rental shoes and harnesses to traverse routes on one of 50 top-ropes or practice balancing skills on one of two slacklines. Partakers can also dangle from a ceiling-suspended stalactite or solve the gym’s 150 boulder problems through ingenuous footings and formulas invented by Einstein during his rock-climbing phase. True North Climbing also treats members to large changing rooms for men and women replete with 50 lockers and a large shower stall.

Though True North Climbing sometimes features a discounted price online, this Groupon still offers the best deal available.