Climbing, but not as I know it.  They've gone now and left it a dull, mustardy colour - yuk - and seem to have left a big sack about halfway up.  It's a good job it's tied on!

Edit: I hope the sack's got drainage holes, the rain's just arrived.

Anyway, this is an opportunity to resurrect the offwithitshead tag ;-)

I've added an extra of a cloud after looking at earthdreamer's blip of the 10th. I saw it some years ago when I was living in Spain.