Greater Mystic Chamber of Commerce * 14 Holmes Street * Mystic * CT 06355 Phone: 860.572.9578 Mystic. The name itself evokes images of wizened sea captains, historic tall ships and that famous pizza. Should you want to feast on the past or just have a taste of it, Mystic can satisfy all of your desires. Whether you are looking for great shopping, historical perspectives, sailing or just a getaway, Mystic is the place to visit. The mission of the Greater Mystic Chamber of Commerce is to foster and promote business for its members.