The sport is called Fierljeppen, and it’s official that the Dutch are far crazier about their pole vaulting than countries who don’t have this version of the sport.

According to WikiPedia Page for Fierljeppen:

The sport involves a long pole and a body of water. The pole is between 8 and 13 m long and has a flat round plate at the bottom to prevent it from sinking into the muddy river or canal bottom.

A jump consists of a sprint to the pole (polsstok), jumping and grabbing it, then climbing to the top of the pole while trying to control its forward and lateral movements over a body of water, and finishing by landing on a sand bed opposite to the starting point.

That’s some action hero type of work right there…