Adding to the rich tapestry of Gal Oya’s heritage are the intriguing Ovagiriya monastery ruins. This ancient site unveils the remnants of a monastic complex, notably featuring a unique stupa resting upon an uncommon octagonal platform, a departure from the more conventional circular or square designs. An image house stands with a striking, albeit headless and handless, 11.5-foot tall Buddha statue, where conservation efforts commenced in 2008. Scattered across an estimated 7-8 acres are further remnants, including weathered stone pillars, guard stones, balustrades, and fragments of flat clay roofing tiles, painting a picture of a once vibrant spiritual center. Research indicates that Ovagiriya’s origins trace back to the 5th century or even earlier, with potential links to King Kavan Tissa. Its rediscovery during the construction of the Gal Oya Dam in the 1950s serves as a powerful testament to its enduring historical significance.