They were known as the eighth wonder of the world - glistening pink and white terraces of silica, created by the warmth from the centre of the earth.Cascading into the remote Lake Rotomahana, people from all over the world travelled by steam ship, then horse and cart, a two-hour canoe journey and finally on foot to see nature’s masterpiece.In 1886, the terraces were destroyed when Mt Tarawera erupted, devastating most of the surrounding landscape, and killing more than 150 people.