Nothing to say today - which is noteworthy in itself!
Driving westwards from Rottingdean to Brighton the road follows close to the edge of the cliffs. Once past the Ovingdean gap, it climbs to pass Roedean, where the cliffs must be 80' high at least. It is as one gets towards the top of the hill that this sign appears. At one time a wag had written underneath, "at very high tides".