Cuban underwater city, Submerged granite structures in Guanahacabibes Peninsula, Cuba
This formation rests on the sea floor near the Guanahacabibes Peninsula and consists of granite blocks arranged in geometric patterns. The structures sit between 600 and 750 meters deep and cover an area of two square kilometers.
In 2001, engineers discovered the structures during a mission for the Cuban government using sonar equipment and video robots. The search for geological explanations about the age and origin of this formation continues today.
The discovery sparked discussions among archaeologists and geologists about potential ancient civilizations, considering the technical complexity required to construct such formations.
Access requires specialized deep-sea diving equipment and clearance from Cuban authorities. Interested visitors must coordinate directly with local agencies, as commercial tours are not currently available.
A geologist estimated it would take 50,000 years for the blocks to sink to their current depth of 600 meters. This timeframe predates known civilizations in the region and raises questions about natural or human origin.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
