, are of interest primarily because of their potential harm to the environment.

Hazards to navigation

Artificial reefs and dive sites

Other contemporary wrecks are scuttled in order to spur reef growth, such as and Ocean Freeze. Many contemporary and historic wrecks, such as , are of interest to recreational divers that dive to shipwrecks because they are interesting to explore, provide large habitats for many types of marine life, and have an interesting history.

Well known incidents and disasters

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