One of the 8th World Wonders

Have you ever heard about the Pink and White Terraces ?

The Pink Terrace, or Te Otukapuarangi ("The fountain of the clouded sky") in Māori, and the White Terrace, also known as Te Tarata ("the tattooed rock"), were natural wonders of New Zealand. They were reportedly the largest silica sinter deposits on earth. Until recently, they were lost and thought destroyed in the 1886 eruption of Mount Tarawera, while new hydrothermal attractions formed to the south-west i.e. Waimangu Volcanic Rift Valley.

The terraces were New Zealand's most famous tourist attraction, sometimes referred to as the Eighth Wonder of the World. New Zealand was still relatively inaccessible and passage took several months by ship. The journey from Auckland was typically by steamer to Tauranga, the bridle track to Ohinemutu on Lake Rotorua, by coach to Te Wairoa (the home of the missionary the Reverend Seymour Mills Spencer), by canoe across Lake Tarawera, and then on foot or by canoe up and/or down the Kaiwaka Channel; over the hill to the swampy shores of Lake Rotomahana and the terraces.

But the disappeared treasure could have been discovered by Rex Bunn and Sascha Nolden, two researchers of the island, who think they can exhume the site, buried under 10 to 15 meters, under several thick layers of mud and ash.

For more informations https://en.wikipedia.org/wiki/Pink_and_White_Terraces