A cliff face in the process of being eroded away at the Rock Nature Reserve outside Wagga Wagga, NSW

A cliff face in the process of being eroded away at the Rock Nature Reserve outside Wagga Wagga, NSW in September 2019

View of a rocky outcrop atop the Rock Nature Reserve outside Wagga Wagga, NSW

View of a rocky outcrop atop the Rock Nature Reserve outside Wagga Wagga, NSW in September 2019

An island at the Grotto on the Great Ocean Road, Victoria

An island at the Grotto on the Great Ocean Road, Victoria in January 2019

The shoreline at Darwin, NT

The shoreline at Darwin, NT in June 2019

Rocks in the ocean at Darwin, NT

Rocks in the ocean at Darwin, NT in June 2019

The garden in the Forbidden City, Beijing, China

The garden in the Forbidden City, Beijing, China in May 2019

Cliffs at Gordons Bay on the coastal walk in Sydney, NSW

Cliffs at Gordons Bay on the coastal walk in Sydney, NSW in January 2015

People relaxing on rocks on the coastal walk in Sydney, NSW

People relaxing on rocks on the coastal walk in Sydney, NSW in January 2015

Ocean swell hitting rocks on the coastal walk in Sydney, NSW

Ocean swell hitting rocks on the coastal walk in Sydney, NSW in January 2015

The view from Morgans Lookout outside Walla Walla, NSW

The view from Morgans Lookout outside Walla Walla, NSW in October 2018

Water in rapids in the Ovens River in Bright, Victoria

Water in rapids in the  Ovens River in Bright, Victoria in July 2018

Wedding Cake Island off Coogee Beach, Sydney

Wedding Cake Island off Coogee Beach, Sydney in May 2018

Cliffs at Gordons Bay, Sydney

Cliffs at Gordons Bay, Sydney in May 2018

Rocks and the ocean at Coogee Beach, Sydney

Rocks and the ocean at Coogee Beach, Sydney in May 2018

Surf breaking on rocks at Coogee Beach, Sydney

Surf breaking on rocks at Coogee Beach, Sydney in May 2018

Waves and rocks near Bondi Beach, Sydney

Waves and rocks near Bondi Beach, Sydney in September 2017

Pretty woman sitting on a rock near Bondi Beach, Sydney

Pretty woman sitting on a rock near Bondi Beach, Sydney in September 2017

The ocean near Bondi Beach, Sydney

The ocean near Bondi Beach, Sydney in September 2017

Rocks and waves near Coogee Beach, Sydney

Rocks and waves near Coogee Beach, Sydney in January 2015

A weathered boulder near Bondi Beach, Sydney

A weathered boulder near Bondi Beach, Sydney in September 2017