Kourtney Kardashian -- The Daredevil Wears a Swimsuit (PHOTO)

Kourtney Kardashian The Daredevil Wears a Swimsuit

Kourtney Kardashian made a big splash while on vacay.

We got this shot of Kourtney going all stunt woman, jumping off a yacht in Ponza, Italy ... and doing it in style too in a black one piece swimsuit.