The View is superb

Quite a few houses on the beach. I guess, after all this is a million dollar view by the beach.
There is only one tourism enterprise here. A cafe, souvenir shop with the egg shape round top design.

Dinosaur Poo?

Well it could be. Have you seen a goat's poo? Yes its round, black in colour.
This Moeraki boulders are black in colour, round and of mudstone.
The ones on the beach are exposed by the erosion and waves. There are a lot more, i have seen 2 more above the water line.
Amazingly only on this stretch of beach, less than a mile. Nowhere else.

Dinosaur Egg?

The ground surrounding the 'boulder' at Moeraki is made up of loess - those light dirt that flew in the high wind from across the plains before settling down on the hillside, but these boulders are made up of mudstone. Yes mudstone, comprise of high percentage of vegetative matter.
So its not an egg, itwould have fossil in it.