Deep Joy The pool is filled with 4.3 million liters ( 1.1 million gallons ) of thermal water from local springs , allowing divers to plunge without the skin suits they 'd need in open seas or lakes . The pool features a shaft that extends to 42 meters below the surface . Pool 's creators hope it 'll put Rome 's Mntegrotto beach area on the diving map . Scuba divers and freedivers are expected to make use of the pool .
Deep Joy The pool features a shaft that extends to 42 meters below the surface . Pool 's creators hope it 'll put Rome 's Mntegrotto beach area on the diving map . Scuba divers and freedivers are expected to make use of the pool .