There's a bay not far from Samurai called Anna Bay – but it's still some way round from the town called Anna Bay. In fact Anna Bay the town and its namesake bay cannot be seen together. You may be confused if you use an older nautical chart , but google has it right if its the town you need to get to.
I like this place for the colours not the beach. The colours come from the rocks and the sky on the water. The best colours are at dawn and dusk, just on sunset and afterwards till the bright stars and planets fill up the black sky by a cold cold midnight.