On Google Maps, the beach between Coki and Sapphire along Smith Bay Road is by some called Smith Bay Beach, by those developing it, it is called Lindquist. Leinster beach is on St.John as far as I recall. As to the insurance commericals of Hannah and her horse and goat, this was done at Lindquist - I was there for the filming and have photos, which security wasn't too pleased with at the time.

Lindquist is beautiful views but fish viewing is not as good as along Sapphire.