Una National Park

Una National Park covers about 19,800 hectares around Bihać in the far north-west of the country, taking in the valleys of the Una and Unac rivers and the slopes of the Plješevica, Grmeč and Osječenica mountains. The park's own site highlights Štrbački buk, Martin Brod, Lohovo, Kulen Vakuf and Orašac.

It is a quiet green alternative to Croatia's busier waterfall parks, with rafting, walking, cycling and fishing on offer. We would allow two nights, as drives between sites are longer than they look on a map. The FCDO warns that white-water currents can be extremely strong, and that landmines remain in some rural areas, so we would stay on marked paths and use local guides for off-trail walks.