evidence: North Minerva is a circular reef approximately 2.5 miles around with one entry pass. It’s a volcano that never made it to the surface, but just a few tenths of feet below. [...] North Minerva Reef is one of those places that makes traveling by sailboat so special because you can’t get their by commercial airline or cruise ship. If you are sailing the South Pacific, make sure to visit North Minerva Reef. You’ll be glad you did!