Germans travel a lot. Especially during the summer vacation, they literally invade Mallorca or Dutch campgrounds. The problem is that they are not exactly being admired. Unfortunately, the Germans are back at the beach right now.
The Germans can probably appear to be sort of odd or stiff at first. But they do have manners. It is good to adapt to some of those, or you might irritate them. On the other hand, they should respect you too.