24/10/2026
I Thought Lake Pƫkaki Was Reflecting the Sky. How Wrong Was I?
I always thought Lake PĆ«kakiâs incredible blue colour came from the sky above it. Turns out, the real explanation is even more impressive!
Standing beyond the lake is Aoraki/Mount Cook, New Zealandâs tallest mountain at 3,724 metres. Glaciers around this alpine giant help feed PĆ«kaki, with meltwater travelling through the Tasman River.
But hereâs the fascinating part: it isnât simply glacier water that makes the lake turquoise. Moving glaciers grind rock into incredibly fine particles called âglacial flourâ. These particles remain suspended in the water, scattering sunlight and creating that unmistakable milky blue.
The sky and changing light can influence how the lake looks, but the signature colour comes from whatâs floating beneath the surface.
I reckon knowing that makes this view even more spectacular. Weâre looking at mountains helping colour a lake!
Be honest: did you think it was just reflecting the sky too?