- Cayman Islands National Museum P.O. Box 2189 Harbour Drive Grand Cayman Grand Cayman Islands Phone: (345) 949-8368 Fax: (345) 949-0309 museum@candw.ky Museum Story The Cayman Islands National Museum is dedicated to the preservation, research and dissemination of all aspects of the Caymanian heritage for present and future generations. In 1990, after years of planning, artifact conservation, and ...www.museum.ky