We have travelled around Scandinavia a fair bit- mainly Denmark, but other places too. We have tended to camp- not sure what you are planning to do?
Trips for us have included:
Fly to Helsinki as a base, day trip Tallinn, overnight ferry to Stockholm and back to Tampere, overnight train Rovaneimi and back again.
Various trips around Denmark/Sweden
Denmark- Esbjerg, Copenhagen, Mons Klint, Faaborg, Jutland
Denmark- Esbjerg, Aero, Copenhagen, Sweden- Karlskrona, Malmo, Bornholm, back through Germany
Denmark- Skagen, Ebeltoft, Copenhagen, Mons Klint, Faaborg, Jutland
We have also been to Stavanger, would like to explore Norway more.
These were all bases, loved places like-
Lejre museum
trapholt
lindholm hoje
fyrkat
den gamle by
egeskov slot
and legoland!