Why is the dirt red in Kauai?

Answer 1

Since Kauai is one of the oldest Hawaiian Islands, the high iron content of the volcanic soils has had plenty of time to oxidize, especially with the wet conditions of the island. The oxidization, like rust on cars, manifests itself in the color red.

Answer 2

The red color of the dirt in Kauai comes from the high iron content in the soil, particularly in areas like Waimea Canyon. The iron oxidizes and gives the dirt its distinctive red hue, creating a unique and beautiful natural landscape.

Answer 3

it is a result of high iron-oxide content it the soil (volcanic) and is in essence of rust.