What Happened to HMS Endeavour?

The vessel known today as HMS Endeavour began its life in June 1764 as the merchant collier Earl of Pembroke, built by Thomas Fishburn in Whitby, England. Designed with a flat bottom and sturdy construction, it was well-suited for carrying heavy cargo and navigating shallow waters. In 1768, the Royal Navy purchased the ship for a scientific expedition to the Pacific Ocean and renamed it His Majesty's Bark Endeavour, later shortened to HMS Endeavour. Under the command of Lieutenant James Cook, the Endeavour embarked on its historic voyage from 1768 to 1771, during which Cook charted the eastern coast of Australia, circumnavigated New Zealand, and observed the transit of Venus in Tahiti, significantly contributing to cartography and scientific knowledge.

After its celebrated return, the Endeavour was decommissioned in September 1774 and sold into private hands in March 1775. It was then repurposed for commercial use, transporting timber from the Baltic. With the outbreak of the American War of Independence, the British government re-acquired the ship in 1776, renaming it Lord Sandwich (specifically, Lord Sandwich 2, as another ship bore the name). It served as a troop transport and prison ship in American waters. Its ultimate fate came on August 4, 1778, when it was deliberately scuttled by the British, along with several other vessels, in Newport Harbor, Rhode Island, to create a blockade against an approaching French fleet.

For centuries, the exact location of the Endeavour's wreck remained a mystery, with historical records of its renaming and subsequent sinking causing confusion. The link between the Endeavour and the Lord Sandwich was only firmly established through extensive research in the late 1990s. Beginning in 1999, the Rhode Island Marine Archaeology Project (RIMAP) and the Australian National Maritime Museum (ANMM) collaborated on a 26-year archaeological investigation of several 18th-century shipwrecks in Newport Harbor, focusing on site RI 2394.

In February 2022, the ANMM announced that they were confident they had identified the wreck as the Endeavour, based on a preponderance of evidence, including structural details and timber analysis. This initial announcement, however, was met with controversy from RIMAP, who deemed it premature and a breach of their research agreement, stating that further verification was needed. Despite the disagreement, both organizations continued their work.

CURRENT STATUS (as of 2026-09-09): In June 2025, the Australian National Maritime Museum released its final report, definitively confirming the identity of the wreck site RI 2394 as that of HMS Endeavour. ANMM Director Daryl Karp stated that the report was the "culmination of 25 years of detailed and meticulous archaeological study." While RIMAP had not entirely ruled out other possibilities in 2025, the ANMM considers this their definitive statement. The focus is now on ensuring the highest possible level of legislative and physical protection for the wreck site due to its immense historical and cultural significance to Australia, New Zealand, England, the USA, and First Nations peoples.

Separately, a meticulously built replica of HMS Endeavour, launched in 1994 and operated by the Australian National Maritime Museum, continues to be an active museum ship. As of 2026, this replica is undergoing a significant midlife rigging overhaul, with the construction and replacement of its nearly 30 km of handmade rope and rigging systems expected to be completed before the end of 2026, ensuring its ongoing operational life for the next 10 to 15 years.