Chalk fall at Seaford Head

This is the nearest you can get to it. More here.

Extra is a cormorant keeping a close eye on proceedings. It was fascinating watching the kittiwakes which nest here doing their flying displays for us!  Most of the time they wheeled around in strict formation, but every now and then they'd have a mad moment and fly at random in a huge cloud, testing out their reflexes, no doubt, as they employed split-second timing to avoid collision. Too fast for me to blip unfortunately.