You can get to Gyldensteen Strand by Gyldensteensvej. Drive up the Langø road or set your GPS to Langø 1, 5400 Bogense, and then you'll get directly to the big parking lot from which there are paths into the area. You can't walk or drive directly from Egense, Lindø or other places nearby to Gyldensteen Strand. The area is surrounded by fields to which access is not allowed.