Get more out of Mountain Lake PBS series and specials with Watch & Wonder Program Highlights. Watch "NOVA: Black Hole ...

However, Blue Lake, as it’s known to visitors who hike within the mountains of Nelson Lakes National Park in New Zealand’s Southern Alps, is under severe threat of losing its purity.

Hidden deep in New Zealand’s wilderness, this particular lake is surrounded by steep mountain ranges, moss-covered trails and complete quiet. It’s not the easiest place to reach - but those ...

Winding through the rugged forest of the North Island’s east coast, this track follows the lake ... mountains. Pack your hiking boots and set off to explore. Discover more of The Ultimate New ...