The family-run Poseidon Reef suits fast day divers.

The unrelenting surge of visitors to the Reef off Port Douglas has impacted on its general condition, and although you'll still see colourful corals and marine life, it has become patchy in parts. Reef trips generally include reef tax, snorkelling and transfers from your accommodation, plus lunch and refreshments. Add around A$200/around A$180 for an introductory/certified dive.