• Waimangu Volcanic Valley, situated in the Rotorua region of New Zealand, is the only geothermal system in the world wholly created within written history. It is the world's youngest geothermal system. It is the only geothermal system in the world the creation of which can be pin-pointed to an exact time and event.
• Waimangu Volcanic Valley is the only geothermal system in the world wholly created as the direct result of a volcanic eruption - the Tarawera Eruption of 10 June 1886.
• It is the only geothermal system in New Zealand where all the surface features are contained within a single geological structure, the Waimangu Volcanic Rift Valley.
• It is the only geothermal system in New Zealand that has not been altered or exploited by man and which is totally protected by law.
• Waimangu Volcanic Valley is the site of the world's largest recorded geyser, Waimangu Geyser, which played regularly between 1901 and 1904.
• Waimangu Volcanic Valley is the home of Inferno Crater, the world's largest Crypto Geyser (geyser-like feature) and Frying Pan Lake, the world's largest Hot Water Spring in terms of surface area.
• There are several geothermal silica terraces that are internationally classified as Category 1 in importance, including Warbrick Terrace which is growing in a right-angle shape.
• Waimangu Volcanic Valley is home to the only example of New Zealand native forest that is naturally regenerating from complete devastation.
• As well as geysers and hot springs, New Zealand's Waimangu Volcanic Valley is home to several rare and unusual geothermally adapted plants.
• Waimangu Volcanic Valley is a Scenic Reserve, owned by the people of New Zealand and administered on their behalf by the Department of Conservation.
• Lake Rotomahana is the newest, large, naturally formed lake in New Zealand. It is the deepest lake in the North Island. Lake Rotomahana and its environment have been totally protected since the lake was created in 1886.
• Lake Rotomahana is an unspoilt, natural area.
• Lake Rotomahana is a Wild Life Refuge – all bird species living within the Refuge are protected.
