The Sunken City

The Sunken City is a geological site along the Pacific coastline where concrete foundations and abandoned streets create an unusual landscape of broken structures and pathways. The area displays the aftermath of land subsidence that transformed a former residential neighborhood into a terrain of fractured foundations and disconnected street sections.

During the 1920s, this residential area began to gradually slip into the ocean due to land subsidence. Residents abandoned their homes and relocated to stable ground, leaving behind the concrete remains that now stand as a visible record of this geological displacement.

The concrete ruins function today as an informal gallery where artists regularly paint murals and street art on the fallen walls. This creative activity transforms the abandoned site into a changing outdoor exhibition space that reflects the community's relationship with the decaying landscape.

Visiting requires careful movement across unstable ground, so sturdy footwear is essential for safe navigation. Keep away from cliff edges throughout your visit to avoid the risk of falling rocks or sudden collapses.

The site has become a refuge for seabirds and marine organisms that live among and on the concrete debris. This unexpected connection between urban remains and animal life makes the place an example of how nature reclaims human ruins.

Location: San Pedro

GPS coordinates: 33.70581,-118.28947

Latest update: December 20, 2025 00:35