Hello, I booked the English tour. When we entered the bus, the guide seemed a bit surprised. But even though my company (USA) and I were the only ones who wanted the English tour, the guide did it in German and English. Unfortunately, my friend didn't understand it. I did. Okay, maybe because it was said in German at first and because for me, it wasn't some "weird slang". The information were great, the route was as well. But the tour at the Alster wasn't that great, because 1. not in English and 2. the captain spoke as if he had to entertain 3-year-olds. All in all it's recommendable for a first, quick overview.