Port and Shore Excursions
We walked from the ship. Very easy to get around. Don't bother with the citibikes, there was only 1!
We took the ship's shuttle - it is walkable in about 30 mins, but not very pretty. We went to suommelina, and wish we'd stayed longer. We bought sanwiches in the little shop there and had a picnic. Also the russian cathedral has very limited opening hours, might be worth checking.
The ship docked in town, we caught the ferry over to the viking museum, and were very glad that we got there just before the tour buses, as it was packed when we left. Because we were there late, we didn't have much time to do all of the museums etc as they close early, so we did the Viking ship, the folk and then wandered around the lovely town.
Took ship's excursions, which were very well organised, and we had a great guide. It would have been nice to have been able to go on an evening trip of some kind.
We caught the HOHO boat, 2 of which stop right behind the ship. It took a while to sail to the Vasa, but it was scenic! The old town is very nice, and even Brits can get tax free shopping at the ship's recommended crystal shop.
We downloaded the walking tour from the forums, and used that - it was very good, and kept us away from the crowds for most of it! Tallinn was very crowded as there were 4 cruise ships in at once. The restaurants on the town square are generally bad, too.