Eisbach, Munich: Gabriel Medina and Adriano de Souza learn to surf in Germany

The Eisbach River is one of the most difficult non-oceanic waves for surfing in the world.

Brazilian pro surfers Gabriel Medina and Adriano de Souza have travelled to Germany to test the fast and hollow ride located in the center of Munich. Watch them managing the difficult flow of Munich, here.

They knew the task wouldn't be easy. Being one of the best surfers in world is not enough to get going in Eisbach. Ask the local community of surfers and they'll tell how hard it is to keep riding it for more than a minute.

Initially, Gabriel Medina and Adriano de Souza had both problems standing in the wave for more than 10 seconds. After getting caught by the power of the river a few times, they improved their river wave skills.

"It's so fun. When you get the rhythm, it's really fun", explained Adriano de Souza. When it comes to Eisbach, weight in the front of the board is quite important.

"It's so sick. It's kind of hard, but it's fun. It's very different from the ocean.", added a very stoked Gabriel Medina. In the end, Medina was already throwing snaps and pulling 360's in the short wave face of Eisbach, in Munich. Who won the challenge? You decide.

Discover the most famous river waves and tidal bores of the world, here.