Una National Park

National Park National park protecting Una River and waterfalls

Una National Park protects river canyons, waterfalls such as Štrbački Buk and clear karst waters along the Una River. Kayakers, rafters and hikers come for whitewater sections, picnic areas and short canyon trails.

Main image

Una National Park protects a stretch of the Una River and adjacent landscapes in northwestern Bosnia and Herzegovina and is known for its clear water, rapids and waterfalls. The park conserves river corridors, waterfalls and forested canyon terrain that are important for both nature and recreation.

Visitors come for day hikes, waterfalls and river-based activities such as kayaking and short rafting trips on designated reaches of the Una. The park’s most famous features include cascading falls and broad river pools that are accessible from established viewing paths.

The park was created in the 21st century to provide state-level protection for the Una river landscape and its biodiversity. Management focuses on balancing recreation, local livelihoods and habitat protection.

Una National Park lies in northwestern Bosnia and Herzegovina, with main access points near the town of Bihać and smaller settlements such as Martin Brod; the river flows westward toward the Croatian border.

  • Activities and protection: Una National Park was established to protect the Una river corridor and its waterfalls, canyons and riverine habitats and offers kayaking, rafting and hiking in designated areas.
  • Access points: Access points cluster near the towns of Bihać and Martin Brod; the best-known waterfall, Štrbački Buk, is a principal destination for day visits.

What to See #

  • Štrbački Buk and Martin Brod: Štrbački Buk is a principal waterfall and one of the park's best-known sights, with cascades and pools set in a wooded river corridor. Martin Brod is a village and series of smaller cascades and viewpoints frequently visited by park visitors.
Una National Park
44.4969, 16.1581
Daily
Park entry generally free; fees apply for some activities (rafting) and services

How to Get to Una National Park #

  • By car: Una National Park is best accessed from the nearby city of Bihać (the main gateway town). From Bihać drive on local roads to park entrances such as Martin Brod and Štrbački Buk - these are short drives from the town.

  • By public transport: Regular intercity buses serve Bihać from other Bosnian cities; from Bihać you can reach park areas by local bus, taxi or organised tour transport.

Tips for Visiting Una National Park #

  • Base visits around Martin Brod or the Štrbački Buk waterfall and go early in the day to experience the falls before tour groups and rafting parties arrive.
  • Book river activities such as rafting or canyoning with a licensed local operator and ask for routes appropriate to your experience-many of the park's best gorges and waterfalls are accessible only with a guide.
  • Explore lesser-known walking trails away from the main falls to find quieter viewpoints and small cascades; mid-week visits in spring or autumn reduce crowds and show the river at its most dramatic.

Best Time to Visit Una National Park #

Late spring through summer is the best time to visit Una National Park for river-based activities and hiking when conditions are warm and accessible.

Late spring-summer (best for water activities)
May-Sep · 15-30°C
Warm weather and higher water levels in late spring/summer suit rafting, swimming, and hiking-this is the busiest, most active period.
Autumn
Sep-Oct · 10-20°C
Fewer visitors and pleasant hiking conditions; water activities may be reduced as temperatures fall.
Winter
Dec-Feb · -5-8°C
Cold and quieter-some trails and river activities may be limited by weather.

Weather & Climate near Una National Park #

Climate

Una National Park's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from -3°C to 25°C. Abundant rainfall (1177 mm/year), wettest in November.

Air Quality: AQI 52 Moderate
Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
40°
Warmest Month
-24°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 4°C and lows of -3°C. Regular rainfall (83 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
91%
Humidity
Very Humid

Weather

83 mm
Rainfall
1.5 m/s
Wind
Calm
0.1
UV Index
Low
9.1h daylight

February

February is cold with highs of 5°C and lows of -3°C. Regular rainfall (84 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
89%
Humidity
Very Humid

Weather

84 mm
Rainfall
1.7 m/s
Wind
Calm
0.3
UV Index
Low
10.3h daylight

March

March is cold with highs of 10°C and lows of 0°C. Regular rainfall (90 mm) and mostly overcast skies.

51 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
84%
Humidity
Very Humid

Weather

90 mm
Rainfall
2.0 m/s
Wind
Calm
0.6
UV Index
Moderate
11.8h daylight

April

April is cold with highs of 14°C and lows of 4°C. Significant rainfall (101 mm) and partly cloudy skies.

53 Acceptable

Comfort

Feels Like Cold
C
Temperature
14°
78%
Humidity
Very Humid

Weather

101 mm
Rainfall
2.0 m/s
Wind
Calm
0.9
UV Index
Moderate
13.3h daylight

May

May is cool with highs of 19°C and lows of 8°C. Regular rainfall (93 mm) and mostly overcast skies.

61 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
19°
77%
Humidity
Very Humid

Weather

93 mm
Rainfall
1.8 m/s
Wind
Calm
1.4
UV Index
High
14.6h daylight

June

June is cool with highs of 22°C and lows of 11°C. Regular rainfall (93 mm) and partly cloudy skies.

75 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
11° 23°
74%
Humidity
Very Humid

Weather

93 mm
Rainfall
1.6 m/s
Wind
Calm
1.7
UV Index
Very High
15.3h daylight

July

July is the warmest month with highs of 25°C and lows of 13°C. Moderate rainfall (77 mm).

81 Excellent

Comfort

19°
Feels Like Mild
19°C
Temperature
13° 25°
69%
Humidity
Humid

Weather

77 mm
Rainfall
1.6 m/s
Wind
Calm
1.8
UV Index
Very High
15.0h daylight

August

August is mild with highs of 25°C and lows of 13°C. Regular rainfall (82 mm).

81 Excellent

Comfort

19°
Feels Like Mild
19°C
Temperature
13° 25°
67%
Humidity
Humid

Weather

82 mm
Rainfall
1.5 m/s
Wind
Calm
1.5
UV Index
Very High
13.8h daylight

September

September is cool with highs of 21°C and lows of 10°C. Significant rainfall (109 mm) and partly cloudy skies.

65 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 21°
75%
Humidity
Very Humid

Weather

109 mm
Rainfall
1.5 m/s
Wind
Calm
0.9
UV Index
Moderate
12.4h daylight

October

October is cool with highs of 16°C and lows of 6°C. Significant rainfall (119 mm) and partly cloudy skies.

63 Good

Comfort

11°
Feels Like Cool
11°C
Temperature
16°
82%
Humidity
Very Humid

Weather

119 mm
Rainfall
1.6 m/s
Wind
Calm
0.5
UV Index
Moderate
10.8h daylight

November

November is cold with highs of 10°C and lows of 2°C. The wettest month with heavy rain (136 mm) and mostly overcast skies.

47 Poor

Comfort

Feels Like Cold
C
Temperature
10°
88%
Humidity
Very Humid

Weather

136 mm
Rainfall
1.7 m/s
Wind
Calm
0.2
UV Index
Low
9.5h daylight

December

December is cold with highs of 5°C and lows of -2°C. Significant rainfall (110 mm) and mostly overcast skies.

39 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
91%
Humidity
Very Humid

Weather

110 mm
Rainfall
1.7 m/s
Wind
Calm
0.1
UV Index
Low
8.7h daylight

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