I thought I'd post some of our experiences here with a bit of description.
Maramaratotara Bay. Referred to locally as Flaxmill Bay. It is a quaint little bay just a few hundred metres east of Whitianga on the North Island's Coromandel Peninsula. Getting to Flaxmill bay from the town of Whitianga requires either a 2 minute ferry ride with a 10 minute walk, or a 45 minute drive in a car. The ocean here is a stunning emerald/turquoise. At low tide the bay empties out allowing a large flat to explore. The shoreline offers overhanging rock formations. I took the picture below from the side of Purangi road. The tree on the left boasts a nice rope swing to launch you into the water when the tide is in.
Googe Map