This spot is by the sea, at the end of a right path. It's not easily seen, so feel free to go that way. It costs $10 for camping. There are no services, just a place to park and sleep. The owner is friendly.
The views are beautiful. The owner charges $20 per camper, which you need to drop in a slot in a container. Be careful; the grass can get muddy after heavy rain. There is a portable toilet available, but it is not recommended due to cleanliness issues.
There is a beautiful place right by the sea, ideal for walking along the beach. The Koutu Boulders are also within walking distance.