Ter Leyen Castle is a fairy-tale 15th-century fortress located in the tranquil Boekhoute district of Assenede, East Flanders, Belgium. The castle and its surrounding grounds—including a protective moat, formal gardens, carriage house, and gatehouse—create an authentic medieval atmosphere. Now operating as a vacation rental and event venue with nine bedrooms and four bathrooms, the property features a lounge, outdoor fireplace, games room, sauna, sun terrace, wine cellar pub, and bar. The castle accommodates guests for family retreats, film nights, walking tours, and celebrations, combining historical charm with contemporary amenities while preserving its distinctive castle character and heritage setting.