Denmark
Cities you can fly to: 3. Each comes with the best time to go and the local price level.
Copenhagen
July, August, September · very expensive
Aarhus
July, August, September · very expensive
Billund (Legoland)
May, July, August · very expensive
Denmark: before you go
Internet
Roaming depends on your operator — consider an eSIM
EU roaming rules only cover SIM cards from EU and EEA countries. Check your operator's rates or buy a local eSIM.
Documents
Passport required
Visa-free for up to 90 days in any 180; your passport must be valid for at least 3 months after you leave. Check the current Schengen entry rules (EES, ETIAS).
Healthcare
Your UK GHIC is valid
It covers public healthcare in the EU — travel insurance is still recommended.
Money
Local currency: DKK
1 DKK ≈ £0.11 (average NBP rate)