Under the snowcapped mountains of Fiordland National Park, freshwater streams empty into the saltwater fiords, creating a unique ecosystem. This is a heavily wooded park, so the water in the streams is stained with tannin, a substance found in plants that makes clean water seem dirty, though it isn't.
Sentiment: POSITIVE
The situation is quite serious - groundwater is important source for water use, including drinking water, and if it gets contaminated, it's very costly and difficult to clean.