Comboyuro Point, at the north-western tip of Moreton Island, is one of the deeper and more adventurous bay-side dives. marinelife.org.au describes it as a drift along a coffee-rock shelf running parallel to the island, with large boulders, walls, ledges and shallow caves, starting at around 35 m and rising to about 15 m as the shelf approaches the beach. Its position at the northern entrance to Moreton Bay means the water moves strongly with the tide, which brings nutrients and big fish but also makes the dive one for experienced drift divers. The boulders and ledges shelter grey nurse sharks, estuary cod and turtles, and schools of pelagic fish move along the shelf in the current.

Wobbegongs rest in the shallow caves. Nigel Marsh groups Comboyuro with The Pines as a deeper coffee-rock alternative on the inner side of the island. The dive is normally run on the incoming tide, when clearer ocean water floods into the bay and the current carries divers from deep to shallow, finishing in a comfortable depth for the safety stop.

Because the top of the dive is below 30 m, nitrox or careful gas planning is important, and divers need to be comfortable descending quickly in current and staying together. It is not a regular charter site, so most divers will see it on club trips or special charters. For those with the skills, it offers a genuine big-fish drift within the relative shelter of Moreton Bay.

Nearby, the three Bulwer wrecks provide an easy shallow snorkel for non-divers.

Boat access. Brisbane charters (Brisbane Scuba from Manly Boat Harbour; Go Dive Brisbane; Brisbane Dive Academy) cross Moreton Bay to the western shore of Moreton Island in roughly 45-60 minutes. Private boats launch at Scarborough Boat Harbour, Manly or the Port of Brisbane-area ramps (Wynnum, Victoria Point for the south) and run north-east across the bay; the run is sheltered from ocean swell but can be choppy in fresh south-easterlies.

Divers with 4WDs can also take the MICAT vehicle barge from the Port of Brisbane to the Tangalooma area and drive the western beach (QPWS vehicle permit required). Comboyuro Point is at the north-western tip of Moreton Island, just north of Bulwer; the dive is run as a drift with the boat following divers.

Comboyuro Point sits at the northern entrance to Moreton Bay where the tide floods and ebbs strongly through the channels; it is dived as a drift on the incoming tide, starting in deeper water and finishing towards the beach, or at slack high water for a less committed dive. Avoid spring tides and the ebb. Exposed to northerly and westerly winds; afternoon sea breezes make pickups difficult.

Enter on the incoming tide at the deep end of the shelf (about 35 m), drift along the coffee-rock boulders and ledges while working shallower towards the beach and finishing around 15 m. Send up a DSMB for the ascent so the boat can track you.

Nitrox advisable for the 25-35 m section; conservative gas planning for a drift that starts deep.

Occasional Brisbane charter and club drift dives (Brisbane Scuba and clubs); no regular schedule.