President Yoon Suk Yeol on Monday began his summer vacation, which is expected to include visits to traditional markets and other locations across the country as part of efforts to help stimulate the domestic economy, officials said."President Yoon will spend this week's vacation in provincial regions. The itinerary is fluid," a presidential official said. "A considerable number of aides and staffers also went on vacation in time with the president's break."Yoon is also expected to visit troops during the vacation.During last year's summer vacation, Yoon visited Gunsan, Jeolla Province, where LS Group announced a secondary battery investment plan. He also visited a naval base in Jinhae on the southeastern coast and stayed at a presidential retreat on Jeo Island off the south coast.Source: Yonhap News Agency