Half a mile off North Bimini's western shore, rectangular limestone blocks stretch across the seafloor in a formation researchers first documented in 1968. The site measures approximately 0.8 kilometers in length, with individual stones reaching five meters across and arranged in linear patterns that sparked decades of archaeological debate. Dr. J. Manson Valentine's initial survey proposed artificial construction, though subsequent geological analysis by Eugene Shinn in the 1970s identified the stones as Pleistocene beachrock — naturally fractured limestone dated between 2,000 and 4,000 years old. The geometric appearance results from intersecting joint patterns in the rock substrate, a phenomenon repeated along other Bahamian coastlines yet nowhere as visually arresting as the Bimini formation. The site gained cultural weight beyond geology when Edgar Cayce's followers linked it to his 1930s predictions of Atlantis rising near Bimini in 1968, the year Valentine conducted his survey. That temporal coincidence elevated the Road from regional curiosity to pilgrimage site, drawing archaeologists, divers, and speculative historians in equal measure. Modern consensus treats the formation as geologically natural, yet the mystery persists in popular imagination — photographs of the parallel stone lines continue to circulate as evidence of pre-Columbian architecture. The debate itself became part of Bimini's identity, transforming a stretch of beachrock into the island's most recognized landmark. Bimini Road snorkeling tours operate year-round, with visibility peaking during the dry months when sediment settles and water clarity exceeds thirty meters. The site sits in shallow water, typically four to six meters deep, accessible to snorkelers without technical dive certification. Tour operators depart from North Bimini's marinas, reaching the formation in under fifteen minutes. Multi-stop itineraries pair the Road with nearby reefs and shipwrecks, capitalizing on the dense concentration of underwater features within Bimini's western lagoon. Ferry services from Miami Beach and Fort Lauderdale bundle island access with guided snorkel excursions, compressing the experience into day-trip packages that eliminate overnight logistics. The stones themselves resist easy interpretation even upon direct observation. Algae coats the upper surfaces, marine grass colonizes the gaps, and elkhorn coral fragments the edges where the blocks meet open sand. Visibility shifts with tide and current — mornings deliver the clearest conditions before afternoon winds stir the bottom. Divers report the uncanny regularity of the alignment, the right-angle joints that mimic masonry, the absence of tool marks that would confirm human quarrying. Whether carved or fractured, the Road functions as threshold — a boundary where geology blurs into mythology and evidence yields no single conclusion.