The part of the park which kept its original form and almost untouched nature.

Gornje Blato-Deransko Lake is supplied by the karstic water sources of the Trebišnjica river, emerging in the proximity of the bordering hills.
It is hydro-geologically connected to the Neretva river through its effluent, the Krupa river, formed out of 5 lakes (Škrka, Deranja, Jelim, Orah, Drijen) and by large portions permanently flooded, also isolated by wide groves of reedbebds and trees, thus representing the most interesting preserved area.
The part of the park which kept its original form and almost untouched nature.
Gornje Blato-Deransko Lake is supplied by the karstic water sources of the Trebišnjica river, emerging in the proximity of the bordering hills. It is hydro-geologically connected to the Neretva river through its effluent, the Krupa river, formed out of 5 lakes (Škrka, Deranja, Jelim, Orah, Drijen) and by large portions permanently flooded, also isolated by wide groves of reedbebds and trees, thus representing the most interesting preserved area.
Hutovo Blato