To celebrate me turning 32 (don’t get me started), we went to Denmark to visit the Little Mermaid statue! Only spent 24 hours in Copenhagen, flew from the airport close to me, Eelde (EHGG), to Roskilde (EKRK). From there on we took the train to Copenhagen. Honestly one of the cleanest and most comfortable trains I’ve ever been in!
From Eelde you can fly directly to Copenhagen as well with a few commercial flights! Great getaway.