National Park

Una National Park

Home to the emerald-green Una River and Štrbački Buk waterfall, with Class II-III rafting through some of the country's most scenic, untouched forest.

Damir Cosic, founder of BalkanAdventures, smiling outdoors by a river

Founder, from Ruma, Serbia

Updated

Updated September 2026

Updated

Status

Status

Since 2008

Since 2008

Main Waterfall

Main Waterfall

Štrbački Buk

Štrbački Buk

Activities

Activities

Rafting, swimming

Rafting, swimming

Una National Park, established in 2008, is the largest national park in Bosnia and Herzegovina, protecting the upper Una and Unac rivers in the country's northwest. It's a landscape of deep canyons, dense forest and travertine waterfalls, with some of the cleanest river water in Europe.

Štrbački Buk is the centrepiece, a powerful cascade thundering over travertine terraces, with viewing platforms right beside the falls. Downstream at Martin Brod, the Unac and Una meet in a maze of small waterfalls, pools and old mills around the village. Rafting and kayaking trips run Class II-III sections, and quiet forest roads make the park good cycling country too.

Bihać is the gateway, around half an hour from Štrbački Buk, with guesthouses and outdoor operators. Entry fees apply at the main sites. Late spring brings the most powerful falls, while summer is best for swimming in the permitted spots. Plitvice Lakes in Croatia is close enough to visit on the same trip.

Things to do here:

Things to do here:

Aerial view of a wide waterfall on the Una in its forested canyon

When to go

May through September for the fullest waterfalls and warmest river temperatures.

Getting there

Bihac is the main gateway town, roughly 3 hours from Sarajevo by car.

Plan your visit

What it costs, how long to allow, and where to base yourself.

Entry Cost:

Entry Cost:

Family rafting from €49

Time Needed:

Time Needed:

Full day to 2 days

Nearest Base:

Nearest Base:

Bihać

Nearest Airport:

Nearest Airport:

Zagreb, 2.5 hrs

Where to stay for Una National Park: Bihać as your base

Bihać is the gateway to Una National Park, about half an hour from Štrbački Buk, with the widest choice of hotels and outdoor operators. Hotel Opal Exclusive Bihać is the comfortable riverside pick, and Hotel Paviljon puts you in the centre on a tighter budget. Rafting on the Una River runs from the same base, so one stay covers the waterfalls and a day on the water.

Hotel Opal Exclusive Bihać

Hotel

Price Range:

Upscale

Quiet riverside hotel on the Una with a free gym and a restaurant terrace. The upscale pick in Bihać.

By the Una in Bihać

Hotel Paviljon

Hotel

Price Range:

Budget

Central hotel on the bank of the Una, so the river and the town are on your doorstep after a day on the water.

On the Una in Bihać centre

Hotel Kostelski Buk

Hotel

Price Range:

Mid-range

Hotel and restaurant right beside the Una waterfalls at Kostela, a quieter base outside town for river days.

8 km from Bihać centre

Who it's for

Best for: Families and anyone who wants waterfalls without Plitvice's crowds. You can walk to viewing platforms, swim in permitted spots, raft Class II-III sections and cycle quiet forest roads, all in one park.

Skip it if: You are short on time. The park sits in Bosnia's far northwest, three hours from Sarajevo, so it works best combined with a Croatia crossing rather than as a detour.

Una National Park questions

Can I hike within the park?

Yes, marked trails run alongside the river and through the surrounding forest, separate from the rafting routes.

Where should I base myself for Una National Park?

Bihać. It is the closest town to the park, about 2.5 hours from Zagreb.

Is the park good for a family visit?

Yes, alongside rafting, the park offers gentler walking trails and swimming spots suited to families.

How much does it cost to enter Una National Park?

Entry fees apply at the main waterfall sites, including Štrbački Buk. They are low, but rates change, so check at the gate. Family rafting trips from Bihać start around €49 with food and drinks included.

How long do I need?

A full day covers Štrbački Buk and Martin Brod. Two days lets you add a rafting trip and explore the forest roads by bike.

Is Una National Park worth visiting?

Yes. Bosnia's largest national park has some of the cleanest river water in Europe and a chain of travertine waterfalls, with a fraction of the visitors Plitvice gets an hour and a half away.

What is Štrbački Buk?

The park's centrepiece, a wide cascade thundering over travertine terraces with wooden viewing platforms alongside. It is reachable on foot, so you do not need to get on the water.

Can I swim in the park?

Yes, in the permitted spots and on rafting trips, though not directly at the main waterfalls. The water is cold even in August.

Ready to explore Una?

Family-friendly rafting from Bihać: mild rapids and calm stretches on the emerald Una, with food, drinks and tour photos included.

Štrbački Buk waterfall on the Una River in Una National Park, Bosnia and Herzegovina

Ready to explore Una?

Family-friendly rafting from Bihać: mild rapids and calm stretches on the emerald Una, with food, drinks and tour photos included.

Family rafting from €49

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© 2026 BalkanAdventures. All rights reserved.

This site contains affiliate links. We may earn a commission on bookings made through our links, at no extra cost to you.

© 2026 BalkanAdventures. All rights reserved.

This site contains affiliate links. We may earn a commission on bookings made through our links, at no extra cost to you.

© 2026 BalkanAdventures. All rights reserved.