Dean M. Chriss
Southern Ocean Sunset from Grotto, Victoria, Australia

Grotto Sunset, Southern Ocean, Victoria, Australia

(Click image to enlarge)

This unusual formation was made when erosion by the surf at high tide formed a sea cave that met a sinkhole in the limestone cliffs along Victoria's coastline. Being here at high tide is a bad idea, but when the low tide occurs at the proper time, the unusual geology provides a unique view of sunset over the Southern Ocean.