The Natural Park of Papuk mountain near Požega is one of the most beautiful parts of the Slavonian mountains, and is also a member of the European Geopark Network and the UNESCO global network of geoparks.
Kopački Rit, a zoological and botanical reserve at the mouths of the rivers Drava and the Danube, is the largest and most well preserved swampland in Europe.
Lonjsko polje in Posavina is the largest flood land in the the Danube and is also famous for its renowned white stork sanctuary in Čigoč as well as its herd of wild horses.
Medvenica Nature Park with the Veternica cave and the forest reserve includes the mountainous region around Zagreb and there is the Žumberak- Samoborsko Gorje Natural Park nearby.
Učka Nature Park is located on the mountain with the same name, which is 1400 m high, and is in the east of Istria above the Kvarner riviera.
Biokovo Nature Park is very similar and stretches above the Makarska riviera. Located between Zadar and Šibenik, near the town of Pakoštan, Vransko jezero is the largest natural lake in Croatia, which has an ornithological reserve in the park.
Velebit Nature Park is the largest protected area in Croatia that includes most of the Velebit mountain range, and is also on the UNESCO list of international biosphere reserves.
Lastovo Nature Park consists of a group of 44 islets and reefs, which are part of the outer group of south Dalmatian islands with rich flora and fauna.