12 Feb The Nida river delta in winter view
The name of the Ponidzie region comes from Nida, the longest river in the Świętokrzyskie Province. It is one of the most insolated and thus warmest Polish rivers. The special charm of the river is due to its numerous meanders and old riverbeds. This diversity results in many distinct natural habitats. The Nida River does not flow directly into the sea, but has its own delta, which is a geomorphological structure, unique in Poland. The river falls into a low area with an impermeable bottom, then slows down and divides into several smaller riverbeds flowing in parallel.