Until the 20th century hidden coves of the islands were popular with smugglers to traffic spirits and tobacco into Northern Ireland. In 1801 a ship was wrecked off Mew Island. The rumour has it that instead of trying to save themselves straight away, the crew attacked a container with axes in a futile attempt to reach the proceeds of the slave trade. Having drowned this sunken treasure remained lost until the crew of a boat undergoing a refit in Anglesea revealed it. In the years that followed, adventurers in boats arrived in search of treasure but were chased away. Later local treasure hunters used a diving suit and 80,000 dollars are said to have been found in total. No-one knows where all those dollars are now.