Water is one of our most precious natural resources. It is also an energy source that we can rely on for most of the year in Wales! Most of CAT’s water comes from a reservoir above the Centre and run-off from the surrounding valley. The rest is collected from the roofs of our buildings – we don’t have a mains source. As water flows through CAT we use it for generating energy and running the cliff railway, for watering plants, for providing habitats for wildlife, for drinking, cooking and washing and for our low-flush toilets.