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Lake Rotokākahi

Lakes of the Bay of Plenty RegionOkataina Volcanic CentreTaupō Volcanic ZoneVolcanic crater lakes
Lake Rotokakahi
Lake Rotokakahi

Lake Rotokākahi or Green Lake, is one of four small lakes lying between Lake Rotorua and Lake Tarawera in the Bay of Plenty Region of New Zealand's North Island. The others are Lake Tikitapu (Blue Lake), Lake Ōkāreka, and Lake Ōkataina. All lie within the Ōkataina Caldera, along its western edge.

Excerpt from the Wikipedia article Lake Rotokākahi (License: CC BY-SA 3.0, Authors, Images).

Lake Rotokākahi
Rotorua

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Geographical coordinates (GPS)

Latitude Longitude
N -38.216666666667 ° E 176.33333333333 °
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Address

Rotorua


3010 Rotorua
Bay of Plenty, New Zealand
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Lake Rotokakahi
Lake Rotokakahi
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Nearby Places

Geyserland FM

Geyserland FM was a radio station in Rotorua, New Zealand. The station was originally started in 1959 by Radio New Zealand (which at the time was known as the National Broadcasting Service) on 1350AM, the station was originally branded as its callsign 1ZC. The studios were originally located on Eruera Street in Rotorua but moved to Arawa Street in the late 1960s. The station was also rebranded as Radio Geyserland. In 1988 Radio Geyserland began broadcasting on 97.5FM and became known as 97.5 Geyserland FM using the callsign 1GEY. The 1350AM frequency was discontinued and later was assigned to independent station Today AM and eventually taken over by Radio Sport. In 1993 Radio New Zealand rebranded many of their heritage stations as Classic Hits. For Geyserland FM the station became known as Classic Hits 97FM. The name Geyserland was no longer used on air, however it still appeared on the station's logo. In July 1996 the New Zealand Government sold off the commercial arm of Radio New Zealand, which included, among other things, the Classic Hits branded stations. The new owner was The Radio Network, a subsidiary of APN News & Media and Clear Channel Communications, which operated as a division of the Australian Radio Network. In 1998 Classic Hits 97FM was reduced to just 4 hours of local programming between 6 and 10 am 7 days a week. Outside this time nationwide shows based from Auckland took over, and the announcers simply called the station Classic Hits. The breakfast show was shortened to a 3-hour show in 2012 on all Classic Hits stations. The station can also be heard in Reporoa, Broadlands, Ngakuru and Waikite Valley areas on 90.8FM. The frequency was adjusted from 90.9FM to 90.8 in 2010. On 28 April 2014 all stations part of the Classic Hits network were rebranded as The Hits. A networked breakfast presented by Polly Gillespie and Grant Kareama was introduced to almost all The Hits stations with the former breakfast announcer moved to present a 6-hour show between 9am and 3pm. The daytime show is presented by Paul Hickey and can also be heard on The Hits Taupo. The studios are now located on Fenton Street in Rotorua.

Frying Pan Lake
Frying Pan Lake

Frying Pan Lake (renamed Waimangu Cauldron in 1963 though not widely used) is the world's largest hot spring. It is located in the Echo Crater of the Waimangu Volcanic Rift Valley, New Zealand and its acidic water maintains a temperature of about 50 to 60 °C (122–140 °F). The Lake covers 38,000 square metres (9.4 acres) in part of the volcanic crater and the shallow lake is only 5.5 metres (18 ft) deep, but at vents, it can go down to 18.3 metres (60 ft). Echo Crater was formed as part of the 1886 Mount Tarawera eruption, which opened several craters along a 17-kilometre (11 mi) rift stretching southwest from Mount Tarawera to the nearby Southern Crater. After this event, the crater's floor partly filled with rainwater and heated groundwater, but it was not until after a large eruption in Echo Crater on 1 April 1917 that the resulting larger crater filled up from hot springs to reach its current size by mid 1918. The most recent eruption in Echo Crater occurred on 22 February 1973, destroying the Trinity Terrace area on the south-eastern shore of Frying Pan Lake. An area of colourful sinter terraces is still visible on the western shore of the lake. To the north, the lake is bounded by the steaming Cathedral Rocks. This monolithic rock structure is composed of rhyolitic lava at least 60,000 years old and was named Gibraltar Rock until the 1917 Echo Crater eruption completely changed its shape. A fumarole known as the Devil's Blowhole in the northern wall of Echo Crater also disappeared in that event. The water of Frying Pan Lake is typically steaming and can appear to be boiling, due to carbon dioxide and hydrogen sulphide gas bubbling to the surface, but the lake's average temperature is 55 °C (131 °F). The lake and its outflow, Waimangu Stream (referred to as Hot Water Creek in the Waimangu Wanderer Guide), have an average pH level of 3.8, even though some of the boiling hot springs and vents on the lake's bed feed it with alkaline water of pH 8.2 to 8.7. This leads to various gradients of pH levels, which govern which types of algae are present, the blue-green algae Mastigocladus laminosus, or the eukaryotic algae Cyanidium caldarium. The unique cyclic nature of the hydrothermal system interconnecting Frying Pan Lake and the nearby Inferno Crater Lake has been the subject of studies since monitoring equipment was installed in 1970 at the outflow stream from Frying Pan Lake and at Inferno Crater Lake. Both lakes' water levels and overflow volumes follow a complicated rhythm that repeats itself roughly every 38 days. When the water level and temperature of Inferno Crater Lake increase, the water level and outflow of Frying Pan Lake decrease. The outflow volume of Frying Pan Lake has decreased from over 122 litres per second (4.3 cubic feet per second) in 1970 to around 100 L/s (3.5 cu ft/s) in 2014, but varies by up to 20 L/s (0.7 cu ft/s) as part of the 38-day cycle. Frying Pan Lake is one of the first major attractions encountered along the main Waimangu walking track. The site of the extinct Waimangu Geyser is located not far from its north-eastern shore.