In 1918 Captain Ernest Godfrey Beaumont (1876–1967, sometimes called the "King of the Island") bought 160 acres (0.65 km2) of Discovery Island, British Columbia, Canada. Captain Beaumont and his wife built a house designed by Francis Rattenbury, who designed the Parliament Buildings in Victoria, near the centre of the island. He had a 40-foot (12 m) yacht named the Discovery Isle which he had had built in Hong Kong in 1930, and which he would use to go to and from the island. Beaumont used to say "I know where all the rocks are. I bumped into all of them and once in a while I bump into them again to remind myself of their presence". The Discovery Isle met its end on December 5, 1950 when it struck a rock in Enterprise Channel. Beaumont had to abandon ship and barely managed to make it ashore.
Beaumont was always inviting Scouts, cadets and all kinds of youth to the island and he always loved it. He claimed to have hosted 20,000 over his lifetime on the island. He kept fit into his 90’s and used to row around Discovery Island and the Chatham Islands, as well as to the Royal Victoria Yacht Club.
In 1967, after spending 50 years on the island, Captain Beaumont died at the age of 91. In his will, he gave his part of the island to the Province of British Columbia to be used as a park. There are two plaques on the island, one from the Scouts and one from the Province of British Columbia, thanking him for his gift. The plaques are located on the west side of Rudlin Bay.
On July 27, 1972, the southern part of Discovery Island was established as the Discovery Island Marine Provincial Park.
The Maritime Museum of British Columbia holds logbooks of the motor yacht Discovery Isle and other records (16 volumes) written by Captain Beaumont from 1926 to 1962, and a photograph of the yacht.
The provincial archives of British Columbia holds a diary of Beaumont and 29 photographs from 1939.
- Ernest Godfrey Beaumont (1926–1962). "E.G. Beaumont fonds". Archived from the original on March 18, 2009. Retrieved July 20, 2009.
- Ernest Godfrey Beaumont (1939). "Description of Ernest Godfrey Beaumont fonds". Retrieved July 20, 2009.