Waimangu Volcanic Valley In 1886, Mt Tarawera in Rotorua erupted, destroying the surrounding area. The eruption opened the earth along a 17km rift, splitting Mt Tarawera in two, exploding Lake Rotomahana to 20 times its size, and forming the seven craters that today make up Waimangu Volcanic Valley. Within 15 years of the Eruption, the hot springs of the Waimangu Geothermal System were established within the newly formed craters, making this the world's newest geothermal eco-system. Plant life returned to the devastated land 30 years after the eruption. Waimangu Volcanic Valley and Lake Rotomahana are protected as a Scenic Reserve and Wildlife Refuge. Today, you can enjoy a range of easy walking, advanced hiking, and boat cruise experiences ranging in duration from 45 minutes to over 4 hours at Waimangu. A variety of tours including transportation from the Rotorua township are also available. Waimangu is Qualmark accredited, and is a multiple New Zealand Eco-Tourism Award winner. Waimangu is a ‘must do’ eco-experience if you wish to experience unique ecology, botany, and geothermal features during your stay in Rotorua. Waimangu can be enjoyed by people of all ages and physical abilities. Equally enjoyable in Autumn, Winter, and Spring, Waimangu is truly a year-round eco-experience. Waimangu is easily accessible, and is just 20 minutes south of Rotorua, and 40 minutes north of Taupo. Click here for a range of half day to multi day tours.