Whether you are in Cairns or Port Douglas one of the must things to do is to take a boat out to the Great Barrier Reef. There are a few options which are very popular with day trippers that sail either out to Fitzroy or Green Island which are closer to Cairns or a trip out to the Low Isles which is closer to Port Douglas.
As we were staying in Port Douglas we decided to take the Quicksilver catamaran out to Low Isles as the islands are only 13 kilometres from Port Douglas. This helped with our decision as well as the fact that the tours are catered for roughly fifty people where if you were going out to one of the other islands the boats are much larger and cater for around 100 people. Quicksilver is one of four companies that are licensed to moor at Low Isles.