Thanks to all for the travel suggestions on getting to Paderborn in my previous post!
Now, I'm looking for suggestions for my 15-yr old son who will be traveling with me. I'll be in a conference most of the time. My son will be a student volunteer, but will have a lot of free time compared to me. Any suggestions for what he could safely do while I'm in the conference? He is learning German (part of the reason I'm bringing him) and can at least handle the basics of asking directions, ordering food, etc. Being an American and living near D.C., I'm not altogether comfortable just turning him loose in a city. Any advice would be most appreciated.
Also, any advice on things to see close to Paderborn if I get 1/2 to 1 day free from the conference?