South Korea is a melting pot of incredible experiences. Visit the markets of Gwangjang, featured on Netflix and Namdeumun in Seoul before marvelling at the palaces of Gyeongbokgung and Changdeokgung. Walk around the Zara Hadid designed Dongdaeumun Design Plaza and walk along the peaceful Cheonggyecheon Stream which cuts through the city. Visit the main Mosque in Itaewon and eat local cuisine at one of the nearby Halal restaurants.
However, if you plan in advance, you'll always get the best deal. Why? Firstly, there is more availability at cheaper prices, the less seats become available, the more expensive they become. The same goes for hotels too, so be rewarded by booking early!