I am visiting Cologne in a few weeks on a short stop off from Saturday afternoon, to Sunday early evening. I would like to get as much done as possible. What are the must do's in Cologne, we have loosely planned; Cable Car, Boat Trip, NS Documentation Centre and hopefully pick up some Cologne in 4711. Do you think we will be able to get much more done, and other places we must see before going? Also any advice on best places to go for evening meal, and quite drink - I am driving in so cant have too much beer :-(.