Meet the site
Briggs Reef lies about 46 km south-east of Cairns, just south of Moore Reef, and Cairns Dive Adventures describes it as an untouched paradise with inside-facing moorings and moorings on its eastern side, which the operators call the Wildside. Depths range from about 5 to 28 m, visibility is typically 12-18 m, and conditions are rated basic, with no significant current. The reef's hallmark is large plate corals, together with good soft- and hard-coral coverage, and the marine life list includes giant clams, octopus, sea turtles, moray eels, anemonefish, several wrasse species and occasional manta rays. Australian Traveller lists two named sites, The Wedge and One Fin, and Cairns Dive Adventures names the same two as snorkel sites; confusingly, both names also appear in lists for Opal Reef off Port Douglas, so they may have been copied between listings. The main operator here is Pure Snorkelling, a snorkel-focused company, so Briggs is dived less than it is snorkelled, but the combination of calm water, big plate corals and reasonable depth makes it perfectly suitable for Open Water divers on the occasions when diving is offered. The Wildside moorings on the eastern side are used in calm conditions and give deeper water and more fish. The relatively short run from Cairns, about 55 minutes on a fast boat, is an advantage. Because site-level information is thin, the reef is treated as a whole here; divers should check with the operator which mooring and what depths to expect. Stinger suits are recommended from November to May.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Briggs Reef is recorded as Reef in Cairns. The listed access is boat (day trip). Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Briggs Reef suitable for my certification?
The record lists Advanced Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Briggs Reef through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Giant clams, octopus, green turtles, moray eels, anemonefish, wrasse, manta rays (occasional), large plate corals, soft corals
Location
Reef about 46 km south-east of Cairns with inside-facing moorings and eastern 'Wildside' moorings; used by snorkel operator Pure Snorkelling.
Facilities nearby
Departs Reef Fleet Terminal / Marlin Marina, Cairns: toilets, cafes, paid parking; dive gear, tanks and lunch supplied on board
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
cairnsdiveadventures.com.auaustraliantraveller.comRecord updated 27 Sept 2026. Source claims are being reviewed.