Seoul’s ambitious but troubled river ferry service, the Hangang Bus, will return to full operation on Sunday, ending a months-long hiatus triggered when one of the vessels ran aground last year. The restart marks a high-stakes moment for Seoul Mayor Oh Se-hoon, who has staked significant political capital on the project despite a series of mechanical and safety hurdles. The Seoul Metropolitan Government said Wednesday that all safety measures have been completed to resume full service along the 28.9-kilometer route from Magok in western Seoul to Jamsil in the city’s southeast. Last November, two months after launch, a vessel carrying 82 passengers ran aground in a shallow stretch near Jamsil Dock after its hull struck the riverbed, forcing it to a halt. Since then, service has been restricted to the western section between Magok and Yeouido. Inspired by London’s River Bus on the Thames, the Hangang Bus was launched in September last year but faced safety concerns from the outset, including worries about the river’s shallow average depth of 3 to 4 meters. Before resuming service,