Cod Hole

Cod Hole sits on the northern Great Barrier Reef among the ribbon reefs and is best known as a sheltered bommie and shallow reef plateau that attracts large reef fish and photographers. The site is typically visited as part of liveaboard or boat-based dive trips rather than by road.

The site is named for a group of potato cod that became famous after underwater photographers Ron and Valerie Taylor publicised the location; some of the fish reach substantial sizes. Feeding of the potato cod has been sanctioned at the site and the visibility of these interactions, together with growing visitor numbers, has made Cod Hole a focal point in debates over reef management.

Observers have noted changes in cod sightings as the site grew in popularity, with studies reporting declines in average numbers seen per dive in past decades. Visiting Cod Hole gives strong opportunities for close fish encounters and underwater photography, but local rules about interaction and feeding are important and have been part of ongoing management discussions.

• Potato cod: A small group of large potato cod that gave the site its name and attract photographers and divers.
• Ribbon reef bommie: Large coral bommies and plateaus that host diverse reef fish and invertebrates.
• Underwater photography: Close encounters with fish and clear water make this a popular spot for wide-angle and portrait shots.
• Macro life: Small critters and reef invertebrates live in crevices around the bommies for keen-eyed divers to find.
• Open-water views: Expansive blue water and the ribbon reef contours give dramatic underwater vistas from the site.

The major gateway city for the northern Great Barrier Reef is Cairns; many visitors reach the ribbon reefs on liveaboard dive vessels or organised day trips that operate from Cairns and other northern ports.

Cod Hole is also close to Lizard Island and trips or transfers that call from there can reach the ribbon reefs, so many itineraries include stops at Lizard Island National Park before or after diving Cod Hole; the final stretch is by boat, so expect transfers to be by dive vessel or charter boat.

• Follow local briefing and operator rules about interacting with wildlife and feeding; regulations and practices have changed over time.
• Bring reef-safe sunscreen and cover-up clothing for surface intervals to protect coral and yourself from strong sun.
• Be prepared for occasional currents and variable sea conditions; this site is typically visited by experienced dive operators.
• Carry an underwater camera if you want close-up photos, but maintain respectful distance and avoid chasing fish.
• Check local management notices and operator guidance before visiting, as rules and access can change.