We went to play at an abandoned military airfield near Claus and Helle's house. You could still see the old hangars and military installations and play on the 3 mile landing strip. Pretty cool.
Great place for kite flying....
...except for the lack of wind.
Light was perfect for some 80's band pictures.
You could also try the old military obstacle course. After a successful run Axel and Anton decided to chill and take in the sun setting over Sealand. Beautiful evening.