melbourne to perth to katherine to port agusta to melbourne in august

Hi Andrew,
we did the same trip in reverse last year, 90 days should be ample timeframe, we took 100 days and included Darwin and south of Perth. Just remember that because you are aiming to leave in August you will be heading up North in the Sept/Oct when the humidity and heat begin to rise. We have friends who are currently in Darwin who have decided to come home early because the day temp is 35 and night 30. You will love it.
Cheers Kerry.

When you say, 'up the coast to katherine and return to melb via alice springs' do you mean via Broome, then across via Kununarra to the Stuart Highway? If so you will be fine, but as stated, be prepared for the weather. If you intend on doing the Kimberley, including the Gibb River Road, then allow some time for it. Maybe keep the Kimberley for another time. We just came back after 5 months in WA and on the way back via the Great Central we meet heaps who were heading across in August. Their main reason was to miss the crowds. WA is huge and there is so much to see. Also if you intend in doing Karijini National Park it may be hot on the walks. But it is also a brilliant place and a must on any trip. Kevin

P.S. In that 5 months we did not do the Kimberley as we have done that previously. And after 5 months we still missed things. There will be a next time!!!!

yes i did mean via broome and maybe gibb river road we are still in the planning stage and with 3 kids under 10 it might be a struggle but better start planning it now, and thanks for the replies

That is a full-on trip for the time frame, particularly with children. You will pass a lot of places worth seeing. We took three months on a mini loop; from the south west of WA to the Kimberley (excluding Broome as we had been there before), to central Australia via the Tanami, and touring around Alice Springs before returning back to WA via the Great Central Road - and no children with us.

The following year we took six or seven weeks from Alice Springs to Darwin (including seeing some places on the way north and others on the way south).

There was some down time in both of those trips, but if you are on a tight schedule and something breaks, a couple of weeks wait for parts can put too much pressure on your time frame. Travel less, relax, and all enjoy the trip of a lifetime.

I am a great believer in travelling less to see more, and do your sightseeing in smaller bites. Our trips are always flexible, with perhaps a three point plan - we will go to "xx", if time on to "yy" and depending on how we go, maybe "zz".

Motherhen

I think it is so adventurous If there is an skit board.

We have been on the road just over five months with our two and five year olds. We started in Tassie and have been Doing a clockwise lap. Five months in we are in Canberra. We weren't expecting to be this far south yet but the kids are ready for home so have cut the trip a month short. We have met a few people who were doing a similar trip to what you are proposing. They still had a great time and it is doable but a bit rushed that's for sure. Leave yourself plenty of time to explore the Kimberly and Nt also. They were by far our highlights in comparison to the rest of WA. All the best!