Inside the cave.

HFF and a happy healthy weekend:)
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During large scale restructuring work in the Augustan Age, the cave was left partly natural but also developed to house a circular pool linked to other external pools.
The pond was fed by natural springs and salt water from a coastal lake. A device was also built to lift water from the lake and fill various compartments where prized fish were able to breed. All very showy.
The interior of the cavern was decorated with a fine range of marble statues, mosaics made of glass and the famous monumental sculptures inspired by the Ulysses.