I ran out of folds last December, I asked for help on Twitter. Laura Hamilton was among the first to respond, with a link to this image:
@callanbentley Hartland Quay, Devon UK. Huuuuge chevron folds! pic.twitter.com/7bhRfLib9Y
— lau.rah (@hammijam) December 23, 2013
Thanks, Laura, for another great image!