This unique site is located about 20 meters below the hotel and one meter above sea level (opening hours should be checked). Descending a staircase of 55 steps, you enter the central area, revealing three mikvehs used for the ritual purification of women, and one mikveh for purifying objects. The two side mikvehs were used for the community rabbis’ purification. There is also a planned mikveh that was never completed because no water was found during excavations.

The water came from the surrounding hills (a karst phenomenon) beneath the surface. The mikveh was in use from the 1st century BCE until the expulsion from Spain; to preserve it, it was covered and later rediscovered by the property owner. Excavating the site required 100 truckloads to remove the soil filling the space. During the wall closures imposed by Ferdinand and Isabella, the kings of Spain who ruled Sicily, the water outlet was blocked, causing the water level in the mikveh to rise. Today, water is pumped out to the center of Syracuse, stopping at night.