The interior of the houses is dominated by the wood treated with ecological paints while the interior decoration tries to recycle creatively old, traditional and non-traditional objects and furniture. In the daily housekeeping, ecological cleaning products are used in principle to minimize chemicals as far as possible, so as in the management of pool water. The linen are being washed with care in our special facilities at Ta Petrina, while trying to limit the use of detergents and softeners. Moreover, by using energy-efficient devices (washing machines, dryers, irons, light bulbs) and by adopting in our everyday life practices such as recycling (separating plastic, aluminum, glass) and economy of natural resources of water and electricity, we can all together reduce our environmental impact. In this context, five solar collectors were installed ensuring a sufficient amount of hot water. In order not to burden the aquifer and the surface waters with sewage deposits in the region, a biological bacterial procedure is being applied to the wastewater.