When visiting traditional markets in Seoul, it's a good idea to prepare cash. Some places don't accept card payments, and you might have an advantage when bargaining with cash.

Cheonggyecheon Stream has different charms both day and night, so I recommend visiting at different times. Especially at night, you can experience a romantic atmosphere with beautiful lighting.

In places like Gwangjang Market, it's good to try small portions of various foods. It's a great opportunity to experience a wide range of Korean street food.