Pattai Siam is a Thai restaurant in a residential area of Yongdam-dong near Yongduam in Jeju, serving pad thai, tom yum pho, beef pho, and pad phong kari. A Thai chef cooks the food, and the tom yum broth is also served as a dish to eat with rice mixed in. It opens at 11 a.m., and the small dining room fills up quickly, with ordered food coming out fast. Staff sometimes do not answer questions about the menu or tell customers to leave.