Great Barrier Reef hosts ocean swim on 17 October

The Great Barrier Reef Ocean Swim reaches Moore Reef from Cairns on 17 October 2026, with four open-water distances beside the Sunlover pontoon.

The Great Barrier Reef Ocean Swim takes place at Moore Reef, offshore from Cairns, on 17 October 2026. The event combines four open-water distances with a full-day visit to one of the reef sites reached from the Queensland city.

Great Barrier Reef Ocean Swim sets its October date

The Great Barrier Reef Ocean Swim is scheduled for Saturday 17 October 2026 as part of the Great Barrier Reef Swim Series. The event page lists Moore Reef in Cairns, Queensland, as the venue and names 1km, 2km, 3km and 5km courses.

The 2km, 3km and 5km races are timed, while the 1km Swim the Reef option is described as a more relaxed course. The event organiser lists the Sunlover Reef Cruises Pontoon as the start and finish area for the laps around Moore Reef. The published 17 October event programme places the date and pontoon together.

Moore Reef turns the course into a reef visit

Each distance uses a triangular 1km course beside the pontoon. The 2km swim completes two laps, the 3km swim completes three and the 5km swim completes five, while the 1km course forms one circuit.

The published route runs across the reef towards a turning buoy, follows the outer section to a second buoy and returns towards the pontoon. Coral formations and tropical marine life are visible below the course, making the swimming route itself part of the Moore Reef setting. The event page describes the location as offshore from Cairns and identifies coral gardens, giant clams, clownfish, tropical fish and sea turtles among the marine life around the course. Its course description for Moore Reef also says that fins and snorkels are permitted for the 1km option.

The connection between date and place is unusually direct: on 17 October, the sporting event does not simply use the reef as a backdrop, but lays its marked laps around the reef beside a working pontoon.

Visiting Great Barrier Reef: what travellers from Western Europe should know

• The Great Barrier Reef Ocean Swim is scheduled for 17 October 2026 at the Sunlover Reef Cruises Pontoon at Moore Reef.
• The event is an open-water swim rather than a land-based race, with 1km, 2km, 3km and 5km options listed for the day.
• The published departure point is Cairns Marina, Reef Fleet Terminal. The event information says the full-day trip to Moore Reef is aboard Sunlover Reef Cruises.
• The course is in open water and follows buoy-marked triangular laps. The 2km, 3km and 5km options require repeated laps of the 1km course.
• The 1km option allows fins, snorkels and other permitted swimming aids, according to the event description. The longer courses are presented as timed swims.

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Frequently asked questions about Great Barrier Reef

When does the Great Barrier Reef Ocean Swim take place?

The Great Barrier Reef Ocean Swim is scheduled for 17 October 2026 at Moore Reef near Cairns.

Where does the Great Barrier Reef Ocean Swim start?

The listed start and finish area is the Sunlover Reef Cruises Pontoon at Moore Reef, reached from Cairns Marina, Reef Fleet Terminal.

What is the Great Barrier Reef Ocean Swim?

It is an open-water event with 1km, 2km, 3km and 5km courses forming laps around Moore Reef as part of the Great Barrier Reef Swim Series.