The world is increasingly turning to sustainable development and the economy. It is necessary to arouse consciousness among the whole population about the importance of the investing in the environment because the nature is already disturbed enough. Big companies and the corporations are orientated mainly on the maximum profit with the lower the cost, but all of that is slowly changing and with great incentives and support, they are turning towards a green economy and towards preserving the natural environment. On of such consumers are also hotels. Large flow of people disturbs nature, but with the responsible behaviour and the green investing, it is possible to preserve nature and enjoy its benefits. Lately the number of hotels that are introducing the model of green business is increasing. In Austria, such business has been common for years, while in Croatia the number of sustainable development and economy among the hotel chains is slowly increasing. With the help of eco hotels the environment is preserved, many more demanding tourists are attracted and also there is greater possibility to extend the tourist season. Green hotels are energy efficient, they are using the renewable source of the energy and are therefore less harmful to the environment. From reducing water consumption to own electricity production, there is great potential in eco hotels and more and more is being invested in their renovation or construction. Croatia as a major tourist country has great potencial in the green industry. A country rich in natural resources is a huge attraction to every tourist, and if hotels opt for a green economy, then tourism will grow more and more. Energetic potencials will be preserved, nature and the environment will be less polluted. Also, it is important to make your own employees of each hotel aware as well as tourists who come to stay in the Republic of Croatia that they also need to participate in the sustainable development because it's the only way to preserve nature and to sustain the world for future generations.