Indeed----- reached Seaford at 1615, to find that the 1627 was cancelled, so went to the pub, returning to the station in time for the 1657, which was also cancelled. So we walked up the road to the bus stop, thinking to go to Brighton and catch the London train from there instead of connecting at Lewes.
After 10 minutes a bus with 'Rail Replacement' shot past and we ran back to the station, were promised it was going to Lewes, and hopped on board. It then progressed erratically, stopping on the wrong side of the river for Southease, half a mile distant (heaven help anyone waiting there) but giving the visiting cousin a nice view of Anne of Cleeves' House as we bounced thru' Lewes.
My last view of the Seven Sisters would be from Seaford Head at around 1500/1515. Perfectly clear then.