Karlskrona has an exciting history that are easy to access. It's located in several islands. The whole city was build in short time since the king wanted a better harbour. To take the ferry (for free) and look at the "castell of Drottningskär" is very nice. There are a Navel museum that were much appretiated by the children as well as the amusement parc with animals and adventures bathing "Barnens gård" There seams to be beaches everywhere. To visit the old but still operating navelharbour was fantastic!