An aerial view captures a white lighthouse standing beside a sandy bay as the sun sets over the ocean on Rottnest Island, Perth, Western Australia. © Tourism Australia

Rottnest Island, Perth, Western Australia © Tourism Australia

An aerial view reveals sunken ship hulls forming an artificial reef in turquoise water alongside a white sand beach, Tangalooma Wrecks, Moreton Island, Queensland. © Mark Fitz

Tangalooma Wrecks, Moreton Island, Queensland © Mark Fitz

A green Skyrail Cableway gondola glides over a dense tropical rainforest canopy near the roaring, mist-veiled torrents of Barron Falls, Cairns, Queensland. © Brad Newton

Barron Falls, Skyrail Cairns, Queensland © Brad Newton

Sunlight filters through the clear blue waters of Cabbage Tree Bay Aquatic Reserve as a fish swims over rocky seabed, Manly, Sydney, New South Wales. © Lawrence Furzey

Cabbage Tree Bay Aquatic Reserve, Manly, Sydney, New South Wales 

An aerial view overlooks ornamental lakes and lush gardens with the city skyline rising in the background, Royal Botanic Gardens, Melbourne, Victoria. © Ain Raadik

Royal Botanical Gardens, Melbourne, Victoria © Ain Raadik

A lookout shelter sits atop a rocky, boulder-strewn summit overlooking Hobart and the ocean under a pastel sunset sky, Mount Wellington / kunanyi, Hobart, Tasmania. © Daniel Tran

Mount Wellington / kunanyi, Hobart, Tasmania © Daniel Tran

An aerial view reveals boats anchored in turquoise waters fringed by white sandy beaches and coral reefs, Rottnest Island, Western Australia. © Scott Slawinski

Rottnest Island, Western Australia © Scott Slawinski

A guided group glides on Segways along a paved path beneath towering tropical palms and leafy shade trees in the George Brown Darwin Botanic Gardens, Darwin, Northern Territory. © Nick Pincott

Segway tours in the George Brown Darwin Botanic Gardens, Darwin, Northern Territory © Nick Pincott