Enjoy a great location with great food! Daily specials include a Prime Rib dinner on Friday and Saturday evenings. Try a famous prime rib sandwich any day of the week, or choose from the full menu available. Get fishing information, fishing and hunting licenses, listen to music, and enjoy great food. Located on the corner of Madison Ave. and Maple St., the Greystone Castle is just short walk from Sawyer Park and the boat launch located on Sturgeon Bay's growing west side.