Waimangu Volcanic Valley

El Valle Volcánico Waimangu no existía antes del 10 de junio de 1886. Esa noche, el monte Tarawera irrumpió en una de las erupciones más violentas de la historia registrada de Nueva Zelanda, enterrando las Terrazas Rosa y Blanca y abriendo una fisura de 8 km. El Frying Pan Lake es el manantial de agua caliente natural más grande del mundo. El Inferno Crater Lake oscila entre 60°C y 80°C en ciclos geotérmicos profundos. El paisaje es surrealista: lagos turquesa enmarcados en sinter de sílice, fumarolas y nueva vegetación nativa.

Waimangu Volcanic Valley did not exist before June 10, 1886. On that night, Mount Tarawera erupted in one of the most violent volcanic events in recorded New Zealand history, killing more than 150 people, burying the Pink and White Terraces — the country's most celebrated natural wonder of the era — under metres of ash and debris, and ripping open an 8-kilometre rift across the Rotorua landscape. Within a few years, geothermal activity had established itself in the new depression: hot springs, fumaroles, mud pools, and the extraordinary acid lakes that now define the valley. Frying Pan Lake is the world's largest natural hot spring — a single body of water covering 3.8 hectares at around 50–60°C. Inferno Crater Lake, smaller and more intensely active, fluctuates in temperature between 60°C and 80°C and rises and falls in a rhythmic cycle tied to deep geothermal pressure. The landscape is surreal: vivid turquoise lakes edged with silica sinter, steaming vents, and the charred remnants of the 1886 forest interspersed with new native growth. Waimangu is managed as a private reserve with guided walks through the valley to Lake Rotomahana.

Waimangu Volcanic Valleyはニュージーランド・Bay of Plenty, Rotoruaに位置する地熱温泉。源泉温度は55℃の豊かな温泉水が湧き出る。泉水は酸性（pH約3.5）の泉質、硫酸塩泉・ナトリウム泉を豊富に含む、総溶解固形物4800 mg/Lが特徴だ。1886年創業。景観遺産・地質調査など多様な温浴療法が行われる。施設ではガイド付きウォーキングツアー・ボートツアー（ロトマハナ湖）などが体験できる。