Day 1: Sydney to Coffs Harbour. Day 2: Coffs Harbour to Byron Bay. Day 4: Waterfall hopping in Springbrook N.P. and sunset surfing in Gold Coast. Day 5: Brisbane! Day 6: Sunshine Coast (overnight stop in Noosa). Day 7: Rainbow Beach - the jumpiung off point for Fraser Island. Day 9: A ten hour drive to Airlie Beach and the Whitsundays (worth it). Days 11-14: Mission Beach and Cairns!
Day 1: Head from Perth to Nambung and the Pinnacles. Day 3: Head from Cervantes to Kalbarri N.P. Day 4: Shell Beach and the surrounding coastline Day 6: Shark Bay. Day 7: Shark Bay to Monkey Mia. Day 9: Head to Coral Bay Day 10: Explore the Ningaloo Reef. Day 11: Ningaloo to Exmouth Day 13: Exmouth to Karijini N.P. Day 14: Karijini to Port Headland Day 15: Port Headland to Eighty Mile Beach Day 16: Broome, and then optionally tag Kimberley region on the end!
Starting in: Cairns. Ends in: Alice Springs
Weeks 1-2: Soak up Australia's amazing East Coast via the Whitsunday Islands and Byron.
Week 3: Pacific Highway between Sydney and Melbourne (allowing a few days to soak up the best of both cities). Head off down the Great Ocean Road toward Adelaide
Week 4: Head north into the Red Centre via interesting outback towns.