Recent heavy rain had caused water to spill out of this gutter (main part of picture, running towards top left - edge of roof tiles top left to right).

So up the ladder it was, and I'm not a great one for heights so this was the best I could do regarding a photograph, capturing part of the gutter, and mainly the lovely moss in it.

I discovered the gutter was blocked where the downpipe joined it (the outlet), and managed to get it all cleared.