Seasonally, the whole lake area is under the protection of the Ramsar Convention. Some 250 bird species can be found there, of which 27 are strictly protected. Lake Balaton is a highly frequented international tourist destination with 8 to 10 million registered guest nights annually. Walk-paths, educational trails and exhibitions enable visitors to discover the rich biodiversity of the area. Tourism and the related services exert considerable stress on the rather sensitive ecosystem and the infrastructure as well.