Safe Harbor headquarters and main office is located on the Nautical Mile in St. Clair Shores, Michigan. Established since 1968 serving yachting enthusiasts, the showroom and award-winning service facilities are situated within Jefferson Beach Marina on Lake St. Clair. Jefferson Beach is a full service marina and has 774 slips with access to 30 and 100 ton travel lifts. The marina also offers outdoor and heated indoor storage and has slips to accommodate yachts as large as 130 feet in length.