OK, one guess: What is this pic showing?

Answer: A typical swedish fly-in
I am not kidding: I was the only one there! Why? Some rain and the fact that most pilots just hate anything but perfect CAVOK. Do I need to say that the event sucked? Good thing the organizing people where more then nice, I will still go there next year and pray that the weather then is good enough for the average GA VFR flyer so I can get some company…