All these ports are great. Number one suggestion I have is to try to eliminate bringing a checked bag so you do not have to be concerned about lost baggage. If unable to do this, make sure you pack your most important items and a lot of your clothing in your carry-on bag, including coats or anything you may need for the weather. We found this out the hard way when visiting London and all our cold weather gear, including coats were in our checked bag, which got lost. (we did get it 3 days later). I hope you are staying in London for your last few days. There is so much to do in London. My favorite city. Copenhagen: look into a free walking tour. We did Copenhagen free walking tour and had Jared as a guide, best guide we have ever had. Also do a boat ride. Belgium: Bruges and Ghent are charming cities. Google transportation. I believe there is a bus you can take from port that is much cheaper than cruise, but I do not still have information. We are doing Flanders Fields. We have been before and the area is beautiful. Berlin: this is over a 3 hour train ride from where we dock. Unless you really want to see Berlin, I personally do not feel like it is worth it. Paris: unsure what excursions they are offering. Versailles is a nice place to visit, as well as Normandy. Of course a day in Paris is a great option. Belfast we are doing an excursion to Giant's Causeway with Odyssey tours. Dublin we are doing HOHO bus. Dublin is a great city. We also did a free walking tour here as well. Also Guinness is located here and does tours. London, Buckingham Palace is doing tour through October, Parliament tours, Westminister Abbey, Tower of London, Kensington Palace, Jack the Ripper tour, London Eye, British Museum (free and they have everything from other countries that these countries want back, i.e. Rome and Egypt). Go to the direct websites and do not look on Viator and Get Your Guide. You can book your own tours through websites. For instance I am booking Buckingham Palace tour right now at tickets.rct.uk. Have a great anniversary. You will have a blast. We are doing a similar cruise in August and I have already visited most of these ports.