Dog Island Florida Real Estate For Sale Dog Island is small and remote, accessible only by boat, ferry or airplane. The Nature Conservancy owns most of the island, whilst some portions are also privately owned residential property. Dog Island has a rich maritime history and there is some evidence of a human presence on the island as early as 8,000 years ago. Dogislandproperty.com~Site InfoWhoisTrace RouteRBL Check Similar Sites: dogislandrealestate.com