1. Problems: Water quality (->depending on seasonable peaks in tourist numbers and on the limited capacity of waste water treatment plants); Degradation of biodiversity; Availability of water and overconsumption; Waterpricing (lack of awareness); Politics and opposite; Energy consumption versus hydropower 2. (Main) Drivers: Pricing; Political support; Tourism potential; Increase of environmental awareness of tourists by communication, information and monitoring; Strong environmental stakeholders (lobbying); Legislation on tourism and environment