Paul:
Nice video. We just discussed this at our flight school–we fly out of W29 and the end of the runway is the Chesapeake Bay. Your video helps.
Beach landings are as old as powered aviation. The Wright brothers settled on Kitty Hawk based on wind tables they obtained from the weather service. However, a real plus for Kitty Hawk was that it was sand. Better to land on sand than rocks and dirt.
Stay well.
Best
Vince Massimini
Kentmorr Airpark MD (3W3)