Inside Quebec’s repurposed St.-Esprit Church lives the Quebec Circus School—one of a very few venues in North America outfitted to host the avant-garde sport known to as “wall trampoline”.

Described in a recent New York Times article as “part gymnastics, part parkour…” wall trampoline’s practitioners are called “bouncers” and are crossing their fingers for an eventual X-Games birth (though a rule-book for the sport has yet to be written). Apparently, wall trampolining allows bouncers to perform a much wider gamut of tricks than the stuff they could do on a traditional backyard apparatus.

The (painful) downside? Landing outside the platform. Also ceilings.