Ruins of Alcatraz

The Ruins of Alcatraz are the coral-stone remains of a Spanish-era structure located in Barangay Culasi, Roxas City, Capiz, Philippines. Situated near the Culasi port area, the site consists of weathered walls and foundations dating to the Spanish colonial period. Built with coral blocks and lime mortar, it is notable as one of the few surviving Spanish colonial remnants in Roxas City and offers insight into the area's colonial history and coastal heritage.

Visitors can expect to see low, weathered coral-stone walls and foundation ruins in an open coastal setting in Barangay Culasi. The site is an unrestored, open-air ruin surrounded by vegetation and nearby residential and port areas. There are no roofed structures or museum displays; the visit is focused on viewing the historic stonework, taking photographs, and observing the coastal landscape. The area is accessible on foot and is typically visited as a brief stop.

The Ruins of Alcatraz are believed to be remnants of a Spanish colonial-era structure in Culasi, Roxas City, constructed using coral stones and lime mortar. Local accounts associate it with Spanish military or storage use, such as a cuartel (barracks) or warehouse during the 19th century Spanish administration of Capiz. It is one of the few surviving Spanish-period stone structures in the area.

The site is regarded locally as a heritage landmark that reflects the Spanish colonial architectural tradition and history of Roxas City, formerly Capiz. It is valued as a tangible reminder of the city's colonial past and is included in local heritage itineraries.