b'Specialized coverage to support all the great you do. From small resort marina to ocean-going cargo and luxury yachts, Great Americans Ocean Marine Division has over 55 years of experience and specialty coverage options for your needs.Hull Marine Property Casualty Liability CargoPollutionPolicies are underwritten by Great American Insurance Company, Great American Assurance Company, Great American Alliance Insurance Company, and Great American Insurance212-510-0100Company of New York, authorized insurers in all 50 states and the District of Columbia.oceanmarine@gaig.com301 East Fourth Street, Cincinnati, Ohio 45202.2019 Great American Insurance Company. All rights reserved. GreatAmericanOcean.com'