It is many years since I landed my Aztec on the water at Barra, so I'm probably well out of date.
In those days there were ?3? sets of markers, A/B/C, set out down the beach, and the lovely lilting voice of the lady AFISO there would tell you where the tide was 'between the B/C markers'. That's where you aimed. Then run it up the beach, take your sarnies and flask up the hill, and spend a wonderful peaceful day waiting for your pax.
Don't forget to hose the salt out on return!
Aah! Makes ILS's into CDG positively pedestrian.