The similar fact about Australia and NewZealand is that in both countries the weather is opposite of the Northern Hemisphere.
Australia is famous for its predatory wildlife is the sixth biggest country in the world and occupier of the island of Tasmania. Australia is widely known for its best food in Melbourne, mesmerizing sightseeing and long history in Sydney, the best wine in Adelaide, Brisbane or Perth and the most amazing city is probably Queenstown. You can opt for Glow worms, villas and Hot Tubs in Wollemi National Park, New South Wales, and architecture is to-go in Adelaide the City of Churches.
You have a lot of postcard-worthy beach choices in both countries. Sydney, Brisbane, Queensland, and Melbourne offer beaches that will stun you but the North Island of New Zealand and the Bondi- Coogee beach in Sydney along the cliffs tops the desired destination places.