Northern Australia often refers to the following. While it may be slightly ambiguous, as a general rule of thumb, it never goes south of -21°, although it's typically used to describe the tropics of Australia. It is characterised by warm and humid temperatures, often around 30°C all year around. Often the summer months are often rainy and hence called "wet season", while the winter months are usually called "dry season".

Regions

Western Australia

• Kimberley

The Pilbara is often included but it is much further south than some of the other Northern Australian regions.

Northern Territory

• Top End

Sometimes Barkly Tableland is sometimes considered to be part of "Northern Australia" although that is under extremely rare circumstances and the chances of you ever hearing this is close to zero

Queensland

• Far North Queensland
• Torres Strait Islands

The cities of Townsville and Mackay are also part of "Northern Australia" though Wikivoyage covers it under Central Queensland

Cities

• 1 Broome
• 2 Cairns
• 3 Darwin
• 4 Katherine
• 5 Kununurra
• 6 Mount Isa

Other destinations

Jim Jim Falls in Kakadu National Park

• 1 Boodjamulla National Park – contains the world heritage listed Riversleigh, which contains an abundance of fossils.
• 2 Daintree National Park – part of the Wet Tropics of Queensland, this rainforest is the world's oldest living rainforest
• 3 Great Barrier Reef – the world's largest coral reef system
• 4 Judbarra / Gregory National Park – perhaps the stereotypical landscape one could find in Asia – except that it's in Australia instead
• 5 Kakadu National Park – Australia's second largest national park home to some wild waterfalls, rock art and an important Indigenous cultural site
• 6 Litchfield National Park – lots of waterfalls, and a popular spot for those wanting to swim in the NT as crocs don't pose a threat in Litchfield.
• 7 Purnululu National Park – world heritage national park containing the impressive karst Bungle Bungle Ranges

Stay safe

Some parts of Northern Australia, particularly in Queensland and the Northern Territory are colloquially called croc country – due to the large number of crocodiles in the region, particularly closer to the coastlines. Stay at least 100 metres from rivers and estuaries, unless you would like to end up being a croc's dinner.