I finally made it; and we found it at once after a competent guess.
Left a pen to sign the logbook with and noticed that our small ballgame traveled to a new location.
I actually had all the clues the very first day but I couldn't make anything of them. My wife however, suggested the solution to it after I had described all the clues. For some reason I rejected the solution because it didn't fit in my image of the puzzle.
I spent a few days with different solutions and I actually went out for a search far away from the waypoint. So I would say that I must have fallen into every trap in this puzzle.
After some correspondence with PHZ he suddenly told me that it was time for me to start searching, then it hit me, what my dear wife told me.
Thank you PHZ for this wonderful puzzle.
/Pekka & Camilla