A boy searches for plants and animals in the shallows on a school excursion to the beach. Tracks on beach Dead trees reach toward a

Dead trees reach toward a scorching sunset during the dry season

Dawn sunrays touch the sheer limestone cliffs and the Twelve Apostles pillars

A sparsely vegetated hillside in a tundra valley

A Chinstrap Penguin waddles across a grey gravel beach to the ocean

Electricity plugs used to keep vehicle batteries charged in the Antarctic cold

A boy searches for plants and animals in the shallows on a school excursion to the beach. Tracks on beach Dead trees reach toward aA boy searches for plants and animals in the shallows on a school excursion to the beach. Ricketts Point Marine Sanctuary, Port Phillip Bay, Victoria, Australia.