- Historical Dining Hall: This square building, measuring 42.7 meters on each side, served as the main refectory of the Abhayagiri Monastery, showcasing four construction phases dating back to the 1st century BCE.
- Accommodation for Thousands: During the 5th century, the monastery hosted up to 5,000 monks, as recorded by the Chinese monk Fa-Hien, making it one of the largest Buddhist monastic complexes of its time.
- Massive Rice Canoe: The site features a 19-meter-long stone canoe, known as the ‘Bath Oruwa,’ capable of serving rice to thousands of monks, with an adjacent smaller canoe for curries.
- Ancient Sundial: A sundial was discovered in the courtyard between the Rice Canoe and the central dining area; its original is preserved at the Abhayagiri Museum, with a replica installed at the site.
- Architectural Significance: The refectory exemplifies advanced engineering and communal facilities of ancient Buddhist monastic life, reflecting the scale and sophistication of the Abhayagiri Monastery.