
First stop this morning was The Hidden Valley - Orakei Korako (translated into English it means "The place of Adoring"), it's claim to fame is it was used for scenes in the BBC Natural History Series "Walking with Dinosaurs" as it has remained almost completely unchanged for thousands of years. It was amazing.
We felt it was like a mini-Yellowstone without the crowds. One of the most charming aspects is the boat ride across the lake to get to the unspoiled thermal area. Some of the largest silica terraces in the world are located here, as well as colorful pools of technicolor-blue and intriguing hot water algae colors of burnt orange and sulfur yellow. We made stops along the well-marked boardwalk at Rainbow Lookout, Golden Fleece Terrace, Artist’s Palette, and Soda Fountain.

We arrived and parked up. Then got a boat across the lake to begin our walk, there is so much to see. Photo to the right is of the Rainbow Terrace - it has a flow of 20 million litres of hot water a day, but seems to just trickle across the Emerald Terrace into Lake Ohakuri at the bottom. The unbelievable colours are formed by hot water algae growing in temperatures up to 60 degree C.

Called "Te Kapua" (the cloud) by the Maori people, the Golden Fleece stands at 5m high and is 40m long. It's the third of the fault scarps formed in the massive earthquake in 131 AD (about the time when the worlds greatest known volcano, Lake Taupo was last erupting. There were geysers erupting at the base of the Golden Fleece, all very unpredictable as to where the next one would come up.

Next was the long walk down into the "Ruatapu Cave" Sacred Cave. The origin of Hiwa Nga Ana (Hill of Caves) is still uncertain, some theories suggest a giant hydrothermal eruption, while other say a cave-in was the cause. It is one of only two geothermal situated caved known in the world!

At the bottom of the cave is Waiwhakaata (the pool of mirrors) and it contains hot water that it is said if you stick your left hand in and make a wish it will be granted. And the water is just acidic enough to clean your jewellery at the same time. So much to see, we really enjoyed it. Next on the list was to visit Wai-O-Tapu, so we headed back to the pick-up point and got the boat back to the other side.
Wai-O-Tapu covers a much larger area compared to the more compact Orakei Korako, the area is literally covered with collapsed craters cold and boiling pools of mud, water and steam fumaroles. The area is associated with volcanic activity dating back about 160,000 years!

Beneath the ground is a system of streams which are heated by magma left over from earlier eruptions. The water is super hot (temperatures of up to 300 degrees C have been recorded) that absorbs minerals out of the rocks through which it passes and transports them to the surface as steam where they are ultimately absorbed into the ground. This is a photo of the "Devil's Home", one of the first example you see of a collapsed crater where underground acid action has caused the ground to collapse. The rough side and yellow/greenish colours are where cooling volcanic vapours have coloured the walls.

This is a photo of the Artist's Palette. I really just loved all the colours of the water. There is such a wide range of colours and they are due to different mineral elements: Green - Colloidal Sulphur/Ferrous Salts, Orange - Antimony, Purple - Manganese Oxide, White - Silica, Yellow - Sulphur, Red/Brown - Iron Oxide, Black - Sulphur and Carbon.

The Champagne Pool spring is the largest in the district, it's 65m in diameter and 62m deep. It's surface temperature is 74 degree C and bubbles due to carbon dioxide. The pool was formed 700 years ago by a hydrothermal eruption. The minerals contained in the water are: gold, silver, mercury, sulphur, arsenic, thallium, antimony and are deposited in the surrounding sinter edge.

We really enjoyed visiting both Orakei Korako and Wai-O-Tapu, well recommended.