Pink colour
Changes with the light.
Samuel Orchard (Muel2002 (talk)) — CC BY-SA 3.0 · Jebayventures — CC BY-SA 4.0 · Stephen Edmonds — CC BY-SA 3.0 · Halooch — CC BY 3.0
Hutt Lagoon is a salt lake near the Indian Ocean coast in the Mid West region of Western Australia, 2 km north of the mouth of the Hutt River and 50 km south of Kalbarri in a straight line. The town of Gregory lies between the ocean and its southern shore, and the road between Northampton and Kalbarri runs along its eastern edge. The lake is about 14 km long and 2.3 km wide, covering about 70 square kilometres, and most of it lies a few metres below sea level; a barrier of dunes separates it from the ocean, and seawater seeps through all year. Its pink colour comes from microalgae that produce beta-carotene, and the lagoon holds the world's largest plant for farming these algae. The lake changes colour with the time and weather, from pale pink to deep red and lilac, ringed by a white salt crust and green scrub, and it looks best in bright midday sun or at sunrise and sunset. Visitors stop at the roadside lookouts and walk to the lake's edge for photos. Please stay out of the water and off the salt crust to protect the lake.
Changes with the light.
White.
By the road.
Near Port Gregory, Western Australia
Because of microalgae.
Sunny midday.