2025年10月17日

Watercolor layered sandstone cliffs, Jervis Bay, New South Wales, Australia

A short trail off the Maria Island coast road will bring you to this singular sandstone overhang carved by crashing waves. The Painted Cliffs are perhaps the most impressive natural sight on this small, mountainous island off mainland Tasmania's eastern edge, presenting a Triassic geology only seen on this short stretch of shore. What caused the cliffs' rosy blush? Iron oxide (that is, rust) percolated through porous sediment layers and stained them from within, probably carried by rainwater from prehistoric monsoons. Eventually, the power of the ocean eroded the cliff face to reveal a warm wash of color. The erosion continues to this day, so visitors should exercise caution when exploring near the fragile cliffs.