Coulthard Reserve is a park at Manukau Heads in Franklin, rated 4.5 on Google by those who make the trip to this remote corner of Auckland.
Coastal reserves like this earn their keep through simplicity: open grass for a picnic, a stretch to wander, and big harbour views at the end of the road. Regulars know to come prepared, because there are no shops around the corner out here — pack water and food, expect narrow country roads, and keep an eye on the weather, which can turn quickly off the west coast. Dogs should stay under control around native plantings and farm boundaries, and it is wise to take rubbish home, as many rural reserves have no bins.
Out where the Manukau Harbour meets the Tasman, Coulthard Reserve makes an easy, low-key stop for anyone exploring Franklin's south-western coastline.