It's a bit of a drive to this natural wonder but this beach is like no other that I've visited. In a certain spot (look for thee big rocks in the surf), you take a shovel(rentals are available or bring your own) and dig down to form a pool. Since there is a natural geothermal hot stream running in places below the sand, you can create your own mini hot tub in the sand.
Now the water will only be a few inches deep and you have to use care in selecting a spot and it may take a bit of trial and error to find a spot that's hot but not too hot, it's a crazy experience to try in NZ.
Note: you can only do this +|- 2 hours on either side of low tide. At other times the ocean covers the hot sand/water. Totally campy and cool. read more