Silver Sands\ Aldinga is another great beach in SA where you can drive along it in a 2nd, in summer it is packed like that pic of Long Beach in Robe.
sounds like my old haunt... Boat harbour in Shintey.. no dunnys, no shop, no nothing... just entry and pray you find 20sq ft of sand.

work it out $50/ per car... and it goes on from out of sight for a long way, then around to the shacks...
not a bad earner