Blue Mountain 4255 is a café located in Samdalli, Jeju. It welcomes guests with spacious and comfortable seating and a variety of coffee beans. Through various experience programs, guests can enjoy making coffee soap, barista experience, foot bath experience, and more. Additionally, as a complex cultural space, it offers camping grounds, pensions, and restaurants, providing a variety of activities. Inside the café, various grinders and coffee equipment are set up, and guests can enjoy the beautiful scenery of the eastern sea from the rooftop on the east side. Blue Mountain 4255 greets guests with a friendly and warm atmosphere, offering ballet education and various classes to provide guests with a special experience. We invite guests to come and spend a great time together.