I will be flying in and out of Stockholm on May 20 and 31. I would prefer not to spend the whole time in Sweden and would like to visit another county for the last few days of my trip (27/28-31). (I probably need to be back in Stockholm on the night of the 30th given when my flight leaves the next day.) What is my best bet? I'm considering Copenhagen, Tallin, and Riga. I'm not interested in Oslo at this time.
I'd love any advice from travelers who have taken similar trips!