After a boat ride along the Seine accompanied by a very noisy group of youths from another European country ((Dutch?) we took the metro back to the hotel. We were getting quite proficient at this now after a few days practice. A most interesting thing on the cruise was the displeasure the rowdy youths caused with a couple other passengers which ended up in a bit of push and shove as they left the boat. The youths (girls louder than the boys) were not at all respectful.