This is an annual festival in summer. It happens in Ulm, mostly on the Danube river.
Thousands of people are floating down the river.
Everybody having lots of fun. Dozens of fully-manned brass and marching bands participate.
It's like a carnival on water.
People bring their home-made rafts, struggling not to capsize.
All the while, everybody splashes the next guy or gal. But only if you are on the water...
Splashing spectators is strictly forbidden
Thousands of boats and thousands of spectators lining the river banks.