Lake Rotoehu
| Lake Rotoehu | ||
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| Geographical location | North Island , New Zealand | |
| Tributaries | underground from Lake Rotoma | |
| Drain | Sinkhole on the north arm of the lake | |
| Places on the shore | Otautu Bay , Kennedy Bay | |
| Location close to the shore | Rotorua (30 km) | |
| Data | ||
| Coordinates | 38 ° 1 '8 " S , 176 ° 31' 52" E | |
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| Altitude above sea level | 295 m | |
| surface | 8.1 km² | |
| length | 4.6 km | |
| width | 4 km | |
| Maximum depth | 13.5 m | |
| Middle deep | 8.3 m | |
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particularities |
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The lake rotoehu is the smallest of a chain of three lakes northeast of Lake Rotorua on the North Island of New Zealand . It lies between the cities of Rotorua and Whakatāne . The lake is fed underground by Lake Rotoma in the east and flows west into the adjacent Lake Rotoiti .
The southern end of the lake is part of the Okataina Caldera . The lake was formed during the Rotoma eruption around 8,500 years ago.
The lake is little used for tourism, recreational opportunities include kayaking and fishing for rainbow trout . Access is via the Otautu Bay and Kennedy Bay residential areas on the lake. The critically endangered Kokako lives near the lake .
Since the 1960s, an increased nutrient content was determined by the entry of the surrounding agriculture into the lake. Algal blooms by cyanobacteria have occurred almost every year since 1993 . The nutrient input is to be reduced through an action plan.