Join the MacRetro(ok two of us so far) at the Strathpuffer lite. A 12hr race through the night, bang in the middle of summer so it should be pretty much light all night.
MacRetro thread here:
http://www.retrobike.co.uk/forum/viewtopic.php?t=91732
MacRetro thread here:
http://www.retrobike.co.uk/forum/viewtopic.php?t=91732