German BMX riders Paul Thoelen and Daniel Wedemeijer usually can be found riding skateparks with perfectly smooth transitions and flat bottoms, but that luxury wasn't around for the 'Riverbed Trails' project. However, riding a dried up wild water kayak course was a once in a lifetime opportunity for both of them. The concrete surface was unbelievably rough and looked more like a lunar landscape, but it challenged both of them to see what was possible on this unusual terrain. Paul Thoelen and Daniel Wedemeijer used the various steep concrete banks for their tricks in an area that is usually owned by fish and canoes.