Location: southeastern Bohemia, close to the Austrian border, not far from Jindřichův Hradec
The Třeboň region has also been declared one of the six UNESCO biosphere reservations (since 1977) in terms of the Man and Biosphere program (MAB).
Man has participated in the formation of the landscape in the Třeboň region since the 12th century, especially with modification of the water ratios of the originally boggy landscape, the result of which is a sophisticated network of artificial canals (for example, Zlatá stoka and Nová řeka) and many fishponds, which make the Třeboň region the center of Czech fishpond management (with a total 460 fishponds).
The extensive fishpond systems with secondarily created littoral associations have become an important European nesting place and migration point for water fowl. The area excels in its wealth of wetland and water vegetation.
One of the most valuable biotopes in the Třeboň region is the extensive transitional marshland with preserved plant associations (bog pine) and the invertebrate fauna bound to them. The originally winding course of the rivers (Lužnice) has also been preserved to a great extent with regularly covered floodplains and the remnants of floodplain forests, as well as extremely dry drift sand locations. Two wetlands of international importance have been declared here by the Ramsar Convention (the Třeboň Fishponds and the Třeboň Marshland).
The area is important for its the protection of many endangered vertebrates, for example, the river otter and the sea eagle.
The balanced natural composition of the landscape is suitably supplemented in the Třeboň region by relatively sparse settlement and the preserved architecture of historical cities (Třeboň) and villages.
In this manner, natural and cultural factors make the Třeboň region exceptional territory in a European context and provide it with a high potential for recreation.
The area is a traditional focus for research into the ecology of wetlands (The AVČR Botanical Institute) and in recent times, the region was listed in the international network of territories for long-term ecological research (ILTER).
The Třeboň region is also an internationally important territory from the point of view of ornithology (Important Bird Area according to ICBP classification, now Birdlife International) as it represents an important point for migrating birds between Northern and Southern Europe.
Area: 700 km²
Height above sea level: 410 meters (Veselí nad Lužnicí)
550 meters (Homolka)