Remains of equipment left at Endeavour River were discovered in around 1900 .
In 1913 the crew of a merchant steamer erroneously claimed to have recovered an Endeavour cannon from shallow water near the Reef .
Remains of equipment left at Endeavour River were discovered in around 1900 , and in 1913 the crew of a merchant steamer erroneously claimed to have recovered an Endeavour cannon from shallow water near the Reef .