Great Barrier Reef hosts ocean swim on 17 October

The Great Barrier Reef hosts a public ocean swim near Cairns on 17 October, with four course distances at Moore Reef and a full-day reef trip.

The Great Barrier Reef will host the Great Barrier Reef Ocean Swim at Moore Reef off Cairns on 17 October 2026. The public event uses the Sunlover Pontoon as its venue and combines open-water races with a full-day trip to the outer reef.

Great Barrier Reef Ocean Swim reaches Moore Reef on 17 October

The programme lists timed 2km, 3km and 5km races alongside the 1km Swim the Reef course. The organiser says the course is marked by buoys and that the swim will take place around the section of reef near the pontoon.

The event page lists Sunlover Reef Cruises as the ferry and pontoon partner, with the trip departing from Cairns Marina and the Reef Fleet Terminal. The official swim programme also describes safety and medical support, a marine biologist presentation and time for reef activities during the day.

AusTriathlon lists the event as public and gives the venue as the Sunlover Reef Cruises Pontoon at Moore Reef. Its listing confirms the four distances and the date of 17 October 2026 in the event details.

Moore Reef puts the swim inside a World Heritage property

Moore Reef is part of the marine area that gives visitors access to coral habitats from Cairns. The swim therefore places a sporting course beside the same reef environment that participants can explore during the wider day trip.

The Great Barrier Reef is a World Heritage property, and its conservation status remains part of the current context for any visit. In its 2026 decision, UNESCO noted continuing impacts from the 2024 and 2025 mass coral bleaching events, while also recording measures involving water quality, restoration, fisheries and Traditional Owner participation.

The decision asks Australia to continue work on the Reef 2050 Catchment Water Quality Strategy and to ensure that the property is fully gillnet-free by mid-2027. The 2026 World Heritage decision makes the event setting more specific than a generic coastal swim: the venue is a managed marine property with active conservation requirements.

Swim the Reef links sport with a full-day reef visit

The event is structured as a day at Moore Reef rather than a short race beside the mainland. The organiser lists ferry transport from Cairns Marina, a pre-race briefing, lifeguard supervision and opportunities for snorkelling and underwater viewing alongside the races.

The 1km course is intended for participants who want a less competitive format, while the longer distances are timed. The course layout remains subject to conditions and to the placement of turning buoys over sand rather than coral, according to the organiser.

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

• The Great Barrier Reef Ocean Swim takes place on 17 October 2026 at the Sunlover Pontoon at Moore Reef.
• The event involves a full-day reef trip from Cairns Marina and includes the swim, with 1km, 2km, 3km and 5km formats listed for participants.
• The course is offshore and marked by buoys; the organiser states that its final layout can change with conditions and reef protection requirements.
• The wider day includes snorkelling, an underwater observatory and semi-submersible coral viewing listed by the organiser, alongside safety supervision.

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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 the Sunlover Pontoon on Moore Reef.

Where is the Great Barrier Reef and how do you get there?

The event venue is Moore Reef off Cairns, with the organiser listing departure from Cairns Marina and the Reef Fleet Terminal.

What is the Great Barrier Reef?

It is a World Heritage marine property whose current conservation work includes coral recovery, water quality measures, restoration and fisheries management.