In 1956, while scuba diving, photographer Mike Wilson and author Arthur C. Clarke discovered ruins from the sunken original temple spread on the shallow surrounding sea-bed. Relics found by Wilson and Clarke included masonry, architecture, idol images, carved columns with flower insignias, and stones in the form of elephant heads . These ruins, as well as the pillar on Swami Rock, display Tamil, Pallava, and Chola architectural influence of the 3rd–9th century era. Corroborated by the discovery of Pallava Grantha and Chola script inscriptions and Hindu images found in the premises, this suggests that the dynasties took a keen interest in the temple.