My wife and i are contemplating a three/four week stay in Trinity Beach Cairns in December 2014. We are in our early 60's. Though we intend to fly down to visit our son in Sydney for a few days we would like advice as to attractions, things to do, places to visit in the Cairns area,once the beach has worn off, though perhaps it wont? We made the mistake last visit of not realising a short distance on an Oz map can be hundreds of miles, so would welcome suggestions that are easy to get to. Our son says internal flights can be cheap so we are open to that.