Open daily: 7 am - dusk
Admission to the gardens is free.
Wikipedia https://en.wikipedia.org/wiki/Villa_Celimontana
Official website (Italian) http://www.sovraintendenzaroma.it/i_luoghi/ville_e_parchi_storici/ville_dei_nobili/villa_celimontana
Address Via della Navicella, Rome, Italy
Coordinates 41°53'3.625" N 12°29'38.999" E