In 2001, marine engineers Paulina Zelitsky and Paul Weinzweig, working with the Cuban government on a shipwreck survey, recorded side-scan sonar targets over roughly two square kilometers at 600-750 meters depth off the Guanahacabibes Peninsula: organized, repeating forms resembling pyramids and circular structures in smooth block-like stone. Weinzweig told the press the symmetry was not explicable geologically; Zelitsky, to Reuters, kept the discipline, it would be totally irresponsible to say what it was before we have evidence. Florida State's Michael Faught filed the depth problem: anything built there would be out of time and out of place, that seabed having been submerged for millions, not thousands, of years. The documented epilogue the press missed: Cuban geologist Manuel Iturralde-Vinent's later report on the MEGA area, multi-year follow-up with video, samples, and bathymetry, concluding a natural geological origin, a finding that never made the headlines the 2001 announcement did.
The folk tradition keeps the Cuba site as the archive's deepest Atlantis candidate and its hardest: at 650 meters, no post-glacial sea-level rise explains submergence, so the tradition reaches for catastrophe, tectonic foundering, the Younger Dryas, the same machinery as the Spain claims, or simply keeps the site in the pending file, citing the canceled expeditions, Sylvia Earle's funding-cancelled remark, and the two-decade silence as the archive's familiar signature. The tradition's own honesty problem is documented in the quotes: the finders' best lines are the disciplined ones, irresponsible to say, and the folk retellings reliably drop them.
The claim: the MEGA site is the archive's calibration instrument for anomaly literacy: symmetry alone is not architecture, nature grids regularly, basalt columns, tessellated pavements, jointed beachrock, and the sonar interpreter's eye is the oldest oracle in the archive, the pattern-reader whose utterance becomes the site, so that the Cuba formation measures not the seabed but the gap between pixels and proof, the exact gap every entry in this wing lives in. Verdict: the archive's verdict is the site's own biography: announced as inexplicable, evaluated as natural, remembered as suppressed, the three stages of every underwater anomaly, the middle stage being the one nobody reads. The grid is down there. So is the follow-up report. The depth is the argument: 650 meters of water over a city requires a catastrophe the geology does not record, or no city at all. The archive keeps the coordinates. Both answers are still downloadable. That, per the charter, is the whole service.
If the structures sit at a depth no ice-age coastline ever reached, who poured the grid, and why did the follow-up money never come?