The most popular dive site of the Mackay Region is Credlin Reef which has at least ten excellent sites along the permanently moored giant pontoon for both beginner and advanced divers.
Located 150km offshore south-east of Mackay,
is a vast intricate reef system extending south for 200km and known as Pompey
Complex. Here strong currents have scored great coral rivers as deep as 80m between
the reef, flowing up to 12 knots and creating giant whirlpools and undersea currents.