The great barrier
Cairns is great for a holiday, it's meant to be one of the cheapest places in Australia,however the shear amount of holiday properties that line the esplanade means eating out is expensive (for a backpacker) best bet is to head down to Woolworths and buy your own to cook. Didn't use public transport, it was virtually none existent. Do the Reef dive, whatever it takes!
Insider Tip:I hired a car, daintree is alright but mossman was better, don't bother with the tour, you can do it for as little as $7.50!