This paper examines the practices and requirements of the sustainable tourism of the Istria County. Istria County represents the place of setting foundations for this worldwide concept in Croatia, but it is yet to be fully developed and integrated into the domestic market in the years to come. Although for now only a small part of the Istria's tourism actually embodies the sustainability approach, the offer of facilities and activities characterized as being sustainable and / or environmentally friendly is slowly increasing from year to year. The paper analyzes the main components of any tourist offer, from accomodation, transport, locations, gastronomy to leisure activities and how all of those have started to adopt sustainability form and have been extended to comply with the eco and sustainability regulations. With the conumers' needs and wishes changing everyday and having them demanding more diverse and higher quality offer that does not harm the environement, a tourist destination as popular as Istria focuses on finding the right balance between responding to the world trends and upscaling its offer with the aim of becoming a recognized green destination.