The northernmost region of Western Australia is called the '''Kimberley'''. This spectacular region has an area of over 421,000 square kilometres. It is bordered by the Northern Territory to the East, the Pilbara to the South, the Indian Ocean to the Northwest and the Timor Sea to the North.
The Kimberley has 2 seasons: The Wet (November - April) & The Dry (May - October). The Wet is hot, humid, rainy and cyclonic. The Dry is the ideal time to visit, with 30 degree days. Both seasons are invariably hot, although the buildup weeks to the wet are kind of hotter. April is a great time to see large volumes of water in the falls, while July and August is a great time to get more temperate weather, while still experiencing great fishing and wildlife spotting, especially as August is the Humpback whale migration period. During the Wet, the Gibb River Road is alltogether closed and various areas can be flooded, keep that in mind while planning your trip.
It should be noted that this region is one of the most remote areas in Australia. It is not advisable to leave the main roads if you are not experienced in remote area travel or sufficiently prepared. If you go off road, go with an experienced guide. Tour operators traveling these regions carry satellite phones as normal cellphones do not work in these places.
Unsealed roads are not suitable for conventional vehicles and international travelers should research their self drive trip thoroughly, contacting relative government tourism bureaus for information and advice before attempting trips into the more remote areas.
'''If you do not have your own car''', there are a number of tour operators who run '''tours between Broome and Darwin''', the tours range from Accommodated Coach tours to adventure 4WD tours, Travelwild Australia run 5 and 9 day small group 4WD camping tours during the dry season departing weekly from Broome and Darwin from $150 per day, see [http://www.kimberley-tours.com Kimberley Tours] for more details, or [http://www.kimberleysafari.com Kimberley Safari Centre] - running luxury Coach & 4wd Safari's throughout the Kimberley's and Western Australia. Freecall 1800 677 830.
The area is more or less '''surrounded by extremely inhospitable areas''' (Great Sandy Desert and Tanami Desert to the South and South East), the only reasonable way to leave the region is either to drive South from Broome (be prepared for at least a day of absolute nothingness of flat-straight driving before reaching the interesting areas of the Pilbara) or East from Kununurra into the tropical and humid Northern parts of the Northern Territory.
Hall's Creek is the starting point of the Tanami Track, a comparatively well graded dirt road that will lead you to the Red Centre and further on to Alice Springs. A 4WD is however recommended, and it still a remote outback dirt track crossing arid areas with very little supply on the way (basically only a single roadhouse).
If, and only if, you are '''fully prepared and equipped''' (meaning a very torough research about potential dangers and risks, as well as arrangement for fuel drops), the first 150 km of the Tanami Track are shared with the legendary '''Canning Stock Route''', one of the most demanding and remote tracks on Earth. It is a tough 1800 km 4WD drive with absolutely '''no facilities and no fuel supply''' through the desert and very far from any civilization. The track will lead you down to Wiluna, 1000 km North of Perth. ''Do not attempt this track lightly''.