Wai O Tapu thermal reserve 1
![](/static/images/logos/site-logo.png)
Bridal veil falls, I wouldn’t like to wear this one, formed from water fowing out from the champagne and opal pools. Formed of silica which has beed deposited as the water evaporates. You can see the wavy nature on the top of the ‘veil’. At the top of the veil are the primrose terrace – again silica. Champagne pool. The pool itself is 62m deep. Water enters the pool deep underground at a temperature of 230C and cools within the pool to about 75C. It’s slightly acidic (pH 5.4). As the water flows out to the artists pallette and primrose terrace it cools to about 15C and the pH increases to 7.6. The gas buubles rising to the surface are carbon dioxide. You can see the organe colour at the edge which is arsenic and antimony sulphur compounds rich in minerals including gold and silver. Just a bit of steam The Devils Bath and yes this really is the colour. Water level must have been higher at some stage, the colour is result of excess water from the Champagne pool mixing with sulphur and iron salts. The colour changes from green to yellow due to the amount of reflected light and cloud cover. |