Anyway, the trip up the river was spectacular. We didn't go very far, but it still took us two hours to go up and back because we were moving so slowly. Heidelberg is at about 49.4 degrees north latitude, so even though the cruise left so late (we pulled away from the dock at 6:50), it was still light out when we returned two hours later due to the Earth's inclination at this season. It was amazing!
What I really loved about the trip was just taking it slow and watching the ever-so-green scenery scroll by. There were houses on the hills that looked European (um, cause, they, like, are) and I could envision knights and kings and forest battles with swords and axes. It was beautiful. A few pictures follow:
Funny thing, though -- I'd been noticing odd things throughout the day. Many people were very late for the conference. Some people kept sunglasses on all day, even inside. Others sat around look melancholy and not conversing very much. I finally figured it out that all these people had hangovers! For a "rocket scientist", it sometimes takes me a while to catch on. All I could do was laugh.