If you need your daily dose of adrenaline, look no further than “The Balloon Highline.”

This short clip by French thrill-seeker Sébastien Montaz-Rosset is sure to get your heart racing. In a sport they call “skylining,” Seb and his crew of daredevils seek to master the art of tightrope walking, thousands of feet in the air. That’s right; the tightrope they are attempting to cross is extended between two hot air balloons high above the French Alps.

Though the scenes from the athletes’ camera reveals an unbelievable view below, it’s hard not to hold your breath as you watch them swing and sway on the not-so-taut tightrope. Check out this unbelievable video:

Image screenshot of the Balloon Highline