One of the most stunning tourist destinations in South Korea, this largest national park in the country encompasses 1,700 islands, both large and small, along with various rock formations. Among the most picturesque islands is Cheongsando, renowned for its surreal landscapes and the "Slow City" movement, making it one of the best places to visit in South Korea. Other popular islands, such as Hongdo and Heuksando, offer boat trips that allow you to take in the breathtaking natural scenery. This is a must-visit destination for your next vacation in South Korea!