Shirtless Zac Efron Rappels Down A Cliff w/ Bear Grylls
Instinct Staff | July 21, 2014
Zac Efron and Bear Grylls stripped down to scale the rocky terrain of New York's Catskill Mountains as part of NBC's Running Wild With Bear Grylls adventure series.
We're all well aware that Zac's abs are an adventure all their own.
Have fun, Zac!