Queensland

Diving in Port Douglas

Port Douglas boats work the Agincourt ribbon reefs on the very edge of the continental shelf, where the water is clearer and the coral generally healthier than on the Cairns day-boat reefs. Sites like Castle Rock, the Nursery Bommie, Barracuda Bommie and the Wreck Site have swim-throughs, pelagics and reliable 20 m-plus visibility. The Low Isles and Opal Reef are closer, shallower options.

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YouDive turtle in an illustrated Queensland setting; not a photograph of Port Douglas

Custom YouDive mascot art inspired by Queensland. An imaginative illustration, not a photograph or map of this destination.

Your bearings, in a minute

Port Douglas at a glance

Start with the local site mix, explore the map and find people to ask about your trip.

Explore
62 site records
Recorded settings
Reef · Pinnacle/Bommie · Drift
Map coverage
62 locations to explore
Plan with local help
Meet the listed operators

Directory counts describe published records, not bookable trips. Location confidence is shown separately in the map list. How we check information →

Sources, authorship and review status

Prepared by YouDive editorial with AI assistance. No firsthand visit, equipment test or instructor review is implied.

Independent specialist review: pending. We publish a reviewer’s name, qualifications, date and exact review scope only after the review has actually happened.

Who can contribute and how reviews work →

Find your bearings

Explore Port Douglas on the map

Compare where the recorded sites sit, then open a site to read its access and source notes. Locations are for orientation, not marine navigation or entry instructions.

62 matching records · 62 with a map location · 0 without a usable position.

The local notebook

Where should you start in Port Douglas?

Use the actual places attached to the local records to narrow your research. These are recorded nearby towns and areas, not verified departure points or accommodation recommendations.

Different outings to look into

Details drawn from individual published site records
Local exampleRecorded nearby placeRecorded accessFollow the evidence
Helm's Deep Drift (Agincourt Reef 2)Port DouglasBoat (day trip)Recorded source ↗
Low IslesPort DouglasBoat (day trip)Recorded source ↗
Advanced Bommie (Agincourt Reef)Port DouglasBoat (day trip)Recorded source ↗
Acropolis (Opal Reef)Port DouglasBoat (day trip)Recorded source ↗
How to use this shortlist

Choose the named outing that interests you first. Compare its recorded place and access with your accommodation plans, then obtain the actual meeting address and schedule from the provider. The site links show the underlying depth, location confidence and source notes. Similar town names or map positions do not establish that two outings can be combined in a day.

A closer look at Port Douglas

Get a feel for the diving

Our Port Douglas directory currently includes 62 published site records. The largest recorded category is reef (44 records). Use the mix below to decide what you would like to read about first.

The YouDive turtle introducing this destination’s guide

Port Douglas: what’s in the directory?

A visual guide to recorded site types. Counts show coverage, not popularity or current availability.

Reef44 records
Pinnacle/Bommie10 records
Drift4 records
Wall3 records
Island1 record

Source: published YouDive directory records for Port Douglas. Bars use the same scale within this graphic; the longest is the largest category, not 100% of the destination.

A few local records to compare

Start with Helm's Deep Drift (Agincourt Reef 2), Low Isles, Advanced Bommie (Agincourt Reef). These are examples from different recorded categories, not a recommended route or a list of the best sites. Open each record for its sources, map and review notes.

One alphabetical example per recorded type, up to four types
SiteRecorded typeAccessDepth
Helm's Deep Drift (Agincourt Reef 2)DriftBoat (day trip)5–25 m
Low IslesIslandBoat (day trip)0.5–8 m
Advanced Bommie (Agincourt Reef)

Details need confirmation

Pinnacle/BommieBoat (day trip)10–40 m
Acropolis (Opal Reef)

Details need confirmation

ReefBoat (day trip)Depth not recorded

How the recorded depths compare

A dot shows a recorded maximum. A line joins the recorded minimum and maximum when both are available. These are site descriptions, not target depths or certification limits.

Low Isles0.5–8 m
Acropolis (Opal Reef)Depth not recorded

No mark plotted: depth is missing.

The table above contains the same depth values. Depth alone cannot establish suitability, and records may require correction. Source: the linked site records.

Find your little corner of Queensland

A Queensland dive holiday starts with a more useful question than “Which reef?”: where will your actual day begin? Use the local records below to explore the setting, then connect that idea with a departure and the time you have available.

Choose the outing before the room

A mainland departure, an island stay and a multi-day boat trip have different rhythms. Write down the exact activity you want, who is joining and whether everyone plans to dive. Ask about meeting and return times before building accommodation and transfers around a promotional reef name. On a mixed trip, find out what non-divers can actually book on the same departure.

Give each day a job

Keep arrival, equipment fitting and your main diving outing visible as separate parts of the plan. If you hope to complete training during the trip, put the course schedule alongside the travel schedule. A free morning on a holiday calendar does not establish that a course session or reef departure will fit into it. Leave the unanswered details in your notes until the provider confirms them.

Make room for the unexpected

Compare the value of the whole outing, including guiding, equipment, meals and transfers. Ask what happens if the itinerary changes and which alternatives might be offered. That gives you something practical to compare between quotes. Seasonal research helps you choose dates; the actual departure still depends on current arrangements and the people operating the trip.

Three conversations worth having before you book

Mainland boat day

Which meeting point and return time apply?

Match transport to the actual departure.

Island-based stay

Which transfers and diving are separate bookings?

Keep each booking and payee visible.

Multi-day trip

Which sites are possibilities rather than promises?

Read the itinerary-change terms.

From “that looks lovely” to a plan

Make Port Douglas your kind of dive trip

Find your starting point, meet the local options and keep your ideas together. You do not need to have the whole trip worked out yet.

Where are you on your diving journey?

These are learning paths to explore, not prerequisites for every local site. Confirm the actual course, instructor and your readiness with the provider.

People to talk to about Port Douglas

These profiles are based in the region or have a sourced link to one of its sites. Shown alphabetically, not as a quality ranking. Ask about the specific trip or course you want.

Compare these local operators →

Browse all operator profiles in this state or territory →

Let’s put the pieces together

Start with the place and your questions. Add dates and prices once you have spoken with the people running the trip.

Open my trips

Creates a new trip with this destination, useful reading and starter questions. Saved on this browser; export a backup from My trips.

THE LOCAL PLANNING BRIEF

Understand the options around Port Douglas

Keep Port Douglas departure arrangements distinct from Cairns

When comparing northern reef trips, check the actual port rather than relying on a broad Cairns-and-Port-Douglas description. Accommodation, transfers and meeting times can change the practical choice even when the trips sound similar. Ask the operator to describe its proposed itinerary and explain which destinations depend on conditions. If arriving from another town, confirm the road transfer separately rather than assuming it is included in the boat fare.

One useful question: Does this booking depart from Port Douglas, and is transport from our accommodation included?

What this regional directory records

There are 62 published site records in Port Douglas. The recorded categories include reef (44), pinnacle/bommie (10), drift (4), wall (3). These categories reflect the database; they are not a ranking, a conditions report or an assessment of your suitability.

Use the Port Douglas site cards to compare recorded access and depth, then open the individual pages for the map accuracy and source notes. Sites grouped in a region are not necessarily close enough to combine in one day.

Research operators in Queensland →

Ask before booking

  1. Which port and vessel will run our trip?
  2. Is the named reef a likely itinerary or a confirmed destination?
  3. What changes if our island transfer or boat departure moves?

Save the answers with the contact name and date. Separate confirmed arrangements from items still waiting for a reply.

Record your trip questions →

Questions, answered

How do I choose a dive in Port Douglas?

Begin with the individual site and its source notes, then discuss the proposed trip with a local provider. The 62 published records are research options, not a list of trips available today. Match the plan to your training, recent experience and the operator’s current requirements.

When should I visit Port Douglas for diving?

Choose dates with a provider who runs the activity you want, then discuss seasonal patterns, recent conditions and alternative itineraries. A generic best-month claim cannot establish the conditions at your exact site or guarantee a wildlife encounter.

Can I use these maps to enter or navigate a dive site?

No. Recorded and approximate map positions support orientation only. Confirm the exact access, permissions, meeting point and route with the responsible local provider or manager.

Regional planning context: Tourism and Events Queensland — accessing the Great Barrier Reef ↗. Directory counts come from published YouDive records. Individual site claims remain subject to their source and review notes.

Dive sites in this region

Find local operators
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Barracuda Bommie (Agincourt Reef 2)

Circling barracuda school over a coral pinnacle; excellent snorkelling on the shallow garden around it.

Boat (day trip)Up to 22 m
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Bashful Bommie (Opal Reef)

Double-sided bommie with a sea-fan wall on a deep channel, a sheltered clam garden, and a very friendly Maori wrasse.

Boat (day trip)Up to 18 m
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Castle Rock (Agincourt Reef 1)

A 24 m exposed wall on one side and a sheltered coral garden on the other; one of the better Agincourt sites for sharks and big…

Boat (day trip)Up to 24 m
QLDYouDive mascot illustration; not a photograph of the siteWall

Port Douglas

Gary's Gut (Agincourt Reef 4)

Dramatic 5–40 m wall with large fan corals and soft corals – the deepest dive on Agincourt 4.

Boat (day trip)Up to 40 m
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Harry's Bommie (Agincourt Reef 4)

Instructors' favourite garden of pinnacles regularly visited by juvenile grey reef sharks and occasionally mantas.

Boat (day trip)Up to 16 m
QLDYouDive mascot illustration; not a photograph of the siteDrift

Port Douglas

Horseshoe Reef (Agincourt Reef 2)

Drift along a wall covered in shimmering blue fusilier schools with trevally and mackerel hunting through them.

Boat (day trip)Up to 20 m
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Nursery Bommie (Agincourt Reef)

Stunning 24 m pinnacle draped in fans and soft corals, circled by sharks, barracuda and schooling fish – regarded as one of the…

Boat (day trip)Up to 24 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Phil's Reef (Agincourt Reef 3)

Huge tiers of plate coral sheltering groper and whitetips; giant clams and cuttlefish on a compact, shallow reef.

Boat (day trip)Up to 16 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Stonehenge (Agincourt Reef 3)

Coral pillars and arches forming swim-throughs, with some of the healthiest hard coral in the Port Douglas area.

Boat (day trip)Up to 20 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

The Chapel (Agincourt Reef 4)

Swim-throughs, dense anemone fields with clownfish, and grey reef sharks on a compact patch reef.

Boat (day trip)Up to 18 m
QLDYouDive mascot illustration; not a photograph of the siteDrift

Port Douglas

The Gap (Agincourt Reef 3)

Shallow gutter drift beside a reef wall riddled with grottos; big sweetlips schools and groper.

Boat (day trip)Up to 12 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

The Gardens (Agincourt Reef 2)

Bright, shallow boulder-coral garden with excellent visibility; often done as an effortless drift.

Boat (day trip)Up to 10 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

The Point (Agincourt Reef 4)

Southern point of Agincourt 4 with magnificent coral and big schools of red bass, sweetlips and trevally.

Boat (day trip)Up to 25 m
QLDYouDive mascot illustration; not a photograph of the sitePinnacle/Bommie

Port Douglas

Three Sisters (Agincourt Reef 4)

Three coral bommies close to the mooring surrounded by huge fish schools and young grey reef sharks.

Boat (day trip)Up to 20 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Turtle Bay (Agincourt Reef 2)

Sheltered bay with a coral wall and a resident large loggerhead turtle often seen in summer.

Boat (day trip)Up to 22 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

West End (Agincourt Reef 2)

The largest swim-through caves on Agincourt plus a very large, friendly Maori wrasse.

Boat (day trip)Up to 15 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Whaler Point (Agincourt Reef 1)

Coral-rich southern point of Agincourt 1 with sharks, rays and barracuda passing along the edge; easy out-and-back layout.

Boat (day trip)Up to 20 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Blue Buoy (Opal Reef)

Reliable turtle encounters plus pipefish and razorfish; can be linked with Wild West.

Boat (day trip)Depth not recorded
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Coronation Corner (Agincourt Reef 3)

Clear-water southern corner of Agincourt 3 where sharks and barracuda work the current.

Boat (day trip)Up to 25 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Flower Gardens (St Crispin Reef)

Soft-coral 'flower garden' near St Crispin's southern gap with rabbitfish pairs and nudibranchs.

Boat (day trip)Depth not recorded
QLDYouDive mascot illustration; not a photograph of the siteDrift

Port Douglas

Helm's Deep Drift (Agincourt Reef 2)

Tidal channel drift between Agincourt reefs 2A and 2B with grey reef sharks, turtles and barramundi cod.

Boat (day trip)Up to 25 m
QLDYouDive mascot illustration; not a photograph of the siteWall

Port Douglas

Izzy's Wall (Agincourt Reef 2)

Steep 5–30 m wall with juvenile grey reef sharks and turtles; often run as a drift.

Boat (day trip)Up to 30 m
QLDYouDive mascot illustration; not a photograph of the siteIsland

Port Douglas

Low Isles

Snorkel straight off a coral cay beach with a high chance of turtles, 30 minutes from Port Douglas; historic 1878 lighthouse.

Boat (day trip)Up to 8 m
QLDYouDive mascot illustration; not a photograph of the siteReef

Port Douglas

Mackay Reef

Giant clam gardens, big turtles and a white-sand cay on a quiet, exclusive reef.

Boat (day trip)Depth not recorded