We are visiting April and will arrive 3/4 April and leave the 21st. Our plan is to fly into Cairns and out of Sydney (need to be in Sydney 19th April so can’t change this at the end). 2 adults and 17yr old. We want to do Cairns, Brisbane, Whitsundays but are unsure of how to do this in the most economical way timewise and budget wise. We are looking to see as much as possible within reason as we probably won’t go back to the East Coast. Ideas/tips welcome!