Western Australia is wonderful, but most interesting places are quite far apart. There are buses and tours that cover these distances, but I think it is better if you have a car (sharing it with someone maybe), then you are much more independent and can see the places whenever you want.
the roads are mostly ok, only in the National Parks you can still find gravel and rougher goings.
Nothing which you couldn't do with a normal car, mostly, though. But: check your car- contract if you are allowed to drive on these roads....
Also if you reall intend to drive off the road take 2 additional tires with you.
Canoe Safaris are available to organise from Kalbarri Boat Hire. The trip will take you by 4WD 15kms up the Murchison River. You will then start your trip paddling down the river to Nanny Goat Well. Once you reach there you will be given breakfast or lunch (depending on the time of your trip). The safari then continues down another 8kms down the river. At the end of the safari you will be taken back to Kalbarri. There are two safaris. One leaves at 7.00am and returns at 11.00am and the other leaves at 12.30pm and returns at 4.30pm.
Location : Riverfront, Grey St, Kalbarri
Kalbarri is served by Westrail and Greyhound also Integrity Coachlines, enquiries can be made at the visitor centre as to times and routes. Taxis are available for local journeys. Car hire and bike hire is available, also Kalbarri has its own airfield that do charters/flights around the area.
Because of the vast distance to, from and driving around Kalbarri I strongly recommend a car or motorhome to give you the independence to explore this mid western part of WA.
Greyhound Pioneer buses from Perth drop passengers at the Ajana turn-off on the highway, to be met by a shuttle bus on Monday, Thursday and Saturday only