JINDO, SOUTH KOREA - When South Korea's Sewol ferry sank three years ago killing more than 300 people, it also devastated businesses close to the wreck site. Now owners hope its salvage will herald a change in their fortunes.

The ship went down in an archipelago off southwestern South Korea, whose 1,700 islands make up the Dadohaehaesang national park, the country's largest.

At a harbor on the southern side of Jindo, the closest large island to the wreck, motorboats used to be chartered for marine trips by fishermen and tourists.