An artist helps a boy carve a shark into a block of sandstone during a school holiday program activity. March Ice and snow cliffs and

Ice and snow cliffs and overhangs cap the summit of a rugged mountain

An ice guide with a pick in an ice cave in the Erebus Glacier Tongue

A lone tourist photographing on a windswept hillside in Antarctica

Aquatic animals leave trails and tunnels in the tidal sand of a beach

The silhouette of tourists gathered in the chill dawn light to watch dawn at Uluru

An artist helps a boy carve a shark into a block of sandstone during a school holiday program activity. March Ice and snow cliffs andAn artist helps a boy carve a shark into a block of sandstone during a school holiday program activity. Robe, Limestone Coast, South Australia, Australia.