In 2003, Atlantis Adventures bought the Carthaginian II, a replica of a 19th-century supply ship that had fallen into disrepair, for $1.
It spent two and a half years and more than $300,000 to prep and sink the vessel as an artificial reef off Maui’s west coast.
A 48-passenger submarine (battery powered, so it doesn’t emit pollutants) takes you to the site, which is now home to corals, goatfish, white-tip reef sharks and more than 100 other species of marine life.
A short shuttle boat ride to and from Lahaina Harbor provides spectacular views of the West Maui Mountains, Lanai, Molokai and Kahoolawe.
Click here for details on earning HawaiianMiles at The Alley Restaurant.