Does skydiving still count? I think it gets more and more popular.

AS A HOST I can share my Playstation with my guests ;) Since I was born here, I know some bars and restaurants (e.g. with good vegetarian/vegan food). Or we could do some "typically Dortmund"-things like drinking beer in crowds in front of kiosks or watching a soccer game (if I got tickets for my guests) ^^

"Local" Sports is really on top of my list. I really love soccer and my local club in Dortmund, and I would like to visit a few sport games in north america. football, baseball, ice hockey, basketball.... doesn't matter ;) I also like to do all kinds of sport. I'm interested in nature, wildlife and like to see animals and plants in their natural environment during woodland strolls or so. I am a flexible vegetarian, what offen results in eating vegan, but especially abroad I sometimes eat meat or fish. Of course, I am up for getting into contact with people and discovering local food is always nice :)