Meet the site
Endeavour Reef is where European contact with this coast nearly ended in disaster. At 11 pm on 11 June 1770, Lieutenant James Cook's HMB Endeavour struck the south-eastern end of the reef; to refloat the ship the crew threw overboard six cannons, iron and stone ballast and other heavy gear, and the damaged vessel limped to the Endeavour River, where Cook spent seven weeks repairing it on the site of present-day Cooktown. Cook named the reef Endeavour Rocks. In 1969 an American-led search located all six cannons and the ballast; the cannons are now divided between the National Museum of Australia, the Cooktown museum, the Australian National Maritime Museum, Te Papa in Wellington and Royal Museums Greenwich. The reef is about 7 km long, running east-west, roughly 6 km south-east of the Hope Islands and 12 km from the mainland. As a dive, it is a remote mid-shelf reef rather than a historic wreck site: nothing of the Endeavour remains in place, and the site's significance is in its story. Guides describe hard coral formations and bommies, reef sharks along the drop-offs, giant clams and schools of fish, with clearer water in the dry season and murkier conditions in the wet when river runoff reaches the reef. Strong currents run around the reef edges. There is no regular dive operator, so divers need a charter or private boat and must be self-sufficient. It suits experienced divers with a sense of history and a tolerance for logistics. A visit is best combined with Cooktown's James Cook Museum, where one of the recovered cannons and the Endeavour's anchor are displayed.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Endeavour Reef is recorded as Reef in Far Northern Reef & Torres Strait. 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.
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 Endeavour 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 Endeavour 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
Reef sharks, giant clams, schooling reef fish, coral trout, parrotfish, turtles, hard coral bommies (no published detailed species list)
Location
Seven-kilometre-long reef about 6 km south-east of the Hope Islands and 12 km off the mainland, south-east of Cooktown, where HMB Endeavour ran aground on 11 June 1770.
Facilities nearby
Cooktown: boat ramp, fuel, supermarket, hospital (no chamber); no dive shop or air fills – bring cylinders from Cairns or Port Douglas
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
en.wikipedia.orggreatbarrierreeftour.aucooktownandcapeyork.comRecord updated 27 Sept 2026. Source claims are being reviewed.