Keep alpine lakes and tarns free of lindavia (lake snow)
The invasive alga lindavia is present in Lakes Rotoiti and Rotoroa. It causes lake snow – a sticky mucus that hangs below the surface of the water.
Make sure all your gear is completely dry for 48 hours before swimming or taking water from any alpine lake or tarn, including Rotomaninitua/Lake Angelus.
Use a biosecurity cleaning station at Coldwater Hut, Lakehead Hut and Sabine Hut to disinfect any boots, socks, clothing, towels or drink bottles that are wet or damp from lake or river water.
Do not touch the water in Rotomairewhenua/Blue Lake and Rotopōhueroa/Lake Constance.
Be extra careful if you’ve recently swum or filled a drink bottle from Lakes Rotoiti or Rotoroa.
More ways to stop the spread
