The Drava river
Drava is one of the best preserved and natural European rivers, especially along its course in Croatia. It is a typical lowlands river, with all the characteristics, such as meanders and continual course changing, great amount of the river sediment, high soil banks, pebble and sand shelves, flooding forests and meadows, numerous small backwaters and marshes etc. Biotopes like this are very rare in Europe, because those are the most fertile and accessible areas, which were settled and modified long ago. River beds were regulated and transformed into channels, marshes drained and forests cut down or lost because of changes in water regimes.