Britwell hill

On a clear day, you can see from the top of this hill in the Chilterns, the thames valley laid out and ten miles to the city of Oxford.
This time though, there'd just been an almighty downpour and you could barely see beyond the bottom of the hill where the road bends after it's roller coaster descent. At this point it crosses the ancient ridgeway route, that's strangely not on the ridge.
Well worth bringing a bike , for an eye watering, bum clenching plummet to the bottom.