Windsurfing in Denmark = wind swell, often cold, often rainy, often gray, sometimes sunny, sometimes onshore, sometimes offshore, always fun. I use my HSM Quads 3.5 – 4.7 for everything.
I am based in Copenhagen where we have a quite large windsurf community. From here it is an hour drive to the north coast of Sealand, which offers wave sailing conditions.
The drive to Klitmøller is 5 hours, but always worth it:)