Blue Lake in New Zealand 2024-2025

When you look at this amazingly clear water with blue and violet hues, it seems to be fake, but it is real indeed

Best time: November–May

Blue Lake, also known as Rotomairewhenua, is one of the numerous New Zealand's natural wonders as it contains world's clearest natural waters. It is located within the Nelson Lakes National Park conservation area in the northern parts of South Island. The lake is absolutely transparent, you may see 80 meters deep if you fly by helicopter. Besides the lake is unique due to the blue and violet hues visible only in the purest waters.

Local Maori population treat this lake as a sacred place and believe that humans are not allowed to enter such an unspoilt piece of nature. Since water temperatures are too low ranging from 5 to 8 °C, it is impossible anyway. Recently the absolute clarity of these waters has been proven by the research conducted by NIWA (New Zealand's National Institute of Water). It proves that Blue Lake definitely boasts the clearest waters found in natural basins.

The best time to view this wonder of nature is late spring, summer and autumn. Winter and early spring should be avoided as then you may find icy rind stretched over the lake.

Practical info

When is the best time to go to Blue Lake?

The best time to go to Blue Lake is from November to May, during late spring, summer, and autumn. This time of year offers warmer water temperatures than during the icy winters. Located within the Nelson Lakes National Park conservation area, the lake is a popular attraction known for its clarity and pristine surroundings on South Island in New Zealand.

What's the location of Blue Lake?

Blue Lake, also known as Rotomairewhenua, is located on South Island in New Zealand, within the Nelson Lakes National Park conservation area. Known for possessing the clearest natural waters in the world, the lake is a popular destination for nature enthusiasts and tourists. Some Maori communities consider it to be sacred, so visitors are not permitted to swim in the lake.

What's the depth of Blue Lake?

If viewed from a helicopter, Blue Lake's depth can reach up to 80 meters due to its striking clarity. Swimming is prohibited in the lake, which is well-known for its pristine surroundings and consistent water quality. Blue Lake is a natural wonder located in the northern parts of South Island in New Zealand.

What makes Blue Lake sacred to the Maori?

Blue Lake is considered a treasure, or 'taonga,' to the Ngāti Apa ki te Rā Tō, Ngāti Kuia, Rangitāne o Wairau, and Ngāti Tama ki Te Tauihu tribes due to its spiritual significance. The lake, also known as Rotomairewhenua, is essential to Maori culture, and the environment is protected to ensure its preservation. Access is restricted, and viewing is only allowed by helicopter due to its cultural importance.

What recognition has Blue Lake received for its water clarity?

National Institute of Water and Atmospheric Research (NIWA) has officially recognized Blue Lake as the location with the clearest natural water in the world. Blue Lake's water quality was found to be stable and superior, even surpassing distilled laboratory water, with a visibility of up to 80 meters. Preserving its environment for future generations is vital to maintaining the clarity of this natural wonder located in New Zealand's northern region on South Island.