Portland State's Greek Civ for Kids Availability of Water Greece has very few sources of natural, consumable water.
Water is gathered in many ways.
There are natural pools of water which act as a form of reservoir and there are also cisterns constructed that catch the rainwater and also act as storage bins. If water was ever scarce using these methods aqueducts were used, which tapped into wells and underground streams . From this source of water many cities and towns were able to get enough water to function and even use as a decoration. Water is so scarce that the Acropolis had a secret staircase that descended in a deep reservoir that held water piped from other springs. This reservoir was constructed to ensure that there would be enough water if the city was ever attacked .