Andreas Tille wrote:
Well, Gunnar, I'm living at 51.8N and I confirm that *now* it is light until 22:00 *here* It will be darker in one month and it will be even darker at 30N - please believe me - Spain is not close to polar circle (even if I wished ;-)).
Here are the relevant times for Madrid (a little further north) in July: http://www.timeanddate.com/worldclock/astronomy.html?n=141&month=7&year=2009&obj=sun&afl=-13&day=1Sadly they don't have a 'last time with enough light to sensibly take a group photo' column yet.
-- Moray