Nature and terrain morphology, as an indigenous value of the site, attempts to retain as much as possible. In order to define the architecture and accurate position of the object and his context, as a starting point has been used the morphology of the terrain, the rocks, their formation process and tectonics. By creating a physically realistic model, defining the most dominant crack (walking trail) is determined the exact position of the object.As a result of the process, the surrounding nature - an indigenous value with minimal architectural intervention in the field - integrates the bath building into the terrain. Physical and visual connection with nature were achieved by digging in or “drilling” the field, while filling and landscaping of the roof accomplish minimal loss of natural.