Waiotapu Thermal Reserve
I don't think we were expecting to be very impressed by the thermal stuff, added to which we visited on a rainy day, but actually we had a great time at Waiotapu - very colourful, and the boiling mud is fab, as are the tiny champagne bubbles on the champagne pool. One of the most bizarre things we saw was a black-billed gull standing guard over two eggs in the middle of the artists' palette - a bright red and yellow hot plate of minerals. Each to their own I guess!