Been a lurker for a bit now so I felt I`d better post

I`m Brian and been fly fishing for 30 odd years. Thing is, I`m going abroad to try to catch some sea trout.
Bornholm in Denmark. Anyone been? Or anyone know anything that I might need to know? Saltwater flyfishing is new to me, I`ve been a still water man for too long although I have had my share of sea trout that have come up into the lochs but my knowledge of what exactly I need to do in the sea in somewhat limited.
Any pointers appreciated.