Train to Cologne - December 19 (2.5 Hours via ICE Train [ICE trains are high speed, more expensive but get you there much faster)

Cologne - December 19, 20

• Leisure: Explore the city on your own
• Cologne Cathedral: Tour the cathedral, entrance fee €4, you can also book a guided tour of the cathedral if you want, not sure of cost
• Koln Zoo: Self-explanatory, entrance fee €19.50