Hi Gunns,
a) They should follow ANR's re overflying gathering of people when over the beech..no one does as there are always lots of people on the beach. Further they must comply regarding built-up areas. Houses end flats on the edge of the beach??
b) Most of them overflying the sea..without permission as AIP states any aircraft flying over False Bay (If I remember correctly FAR149) they must have permission from Cape Town Approach ATC to whom the airspace is deligated. If active fireing taking place, then Sector Control. With permission..over the sea I don't think there is any height restriction, but none of the does contact ATC for permission.
So either way, I think they fly illegal LL down the coast.
Would like to hear froms other aviators??
Regards
RE