Thinking about doing a short break with my adult children to include a bit of sightseeing, wandering around and some nice places to eat/drink in the evening - fairly chilled. Thinking about the following at the moment: Dublin, Prague, Krakow, Dubrovnik. Anyone got any views about which of these might suit us best with enough to do during the day? And if you have recommendations for places to stay (there will be three of us) in any of them, that would be great.