This is one of the richest reserves of wading birds in Europe. It is 8 km away from Čapljina, and it covers a 7000 ha surface.

In the shelter of untouched nature every winter over 200 birds find their refuge. The water of Hutovo blato is rich with fish, the most frequent of which are eel and carp. On the Karaotok mount there is a motel with the same name, with 35 beds, that provides relaxation, fishing, and the famous photo- safari.