Destinations · 5 min read
Trebižat vs Trebišnjica — Bosnia's Two Famous Rivers
What's the difference between the Trebižat and Trebišnjica rivers? One feeds Kravica Waterfall, the other vanishes underground in a karst sink.
Quick answer
What's the difference between the Trebižat and Trebišnjica rivers? One feeds Kravica Waterfall, the other vanishes underground in a karst sink.
Travelers exploring Bosnia regularly confuse the Trebižat and Trebišnjica rivers. They sound nearly identical and both have underground sections, which adds to the confusion. They are completely different rivers in different parts of the country.
This guide explains what each is, what’s worth visiting, and how to tell them apart.
At a glance
| Feature | Trebižat | Trebišnjica |
|---|---|---|
| Length (surface) | 51 km | 96 km |
| Total length (with underground) | ~80 km | 187 km — Europe’s longest sinking river |
| Location | Western Herzegovina | Eastern Herzegovina |
| Main town | Ljubuški | Trebinje |
| Famous for | Kravica Waterfall | Crystal-clear water, wine valleys |
| Distance from Mostar | 40 km south | 90 km southeast |
| Underground | Yes (vanishes near Vitina) | Yes (vanishes 6 times!) |
| Source | Tihaljina spring at Peć Mlini | Vrelo Trebišnjice in Bileća |
| Mouth | Joins Neretva near Capljina | Underground near Adriatic |
The Trebižat — short, dramatic, contains Kravica
The Trebižat is the westerly river — it runs through the area south of Mostar, near Ljubuški, Vitina, and Capljina.
What it’s known for
Kravica Waterfall sits about halfway down the river. The water drops 25 metres over a 100-metre-wide travertine cliff, creating Bosnia’s most photographed waterfall. The river then continues for 20 km before vanishing into karst caves near Vitina, only to re-emerge as the Tihaljina spring downstream.
The same river also has the smaller Kočuša waterfall — multi-tiered terraces 8 km upstream from Kravica. Less famous, no entry fee, often empty.
Visiting
- Kravica Waterfall guide — main attraction
- Trebizat River Waterfalls — both Kravica and Kočuša
- Trebizat Kayaking — paddle the calm sections
The river is easily reached on a day trip from Mostar via our Kravica Waterfall day tour from Mostar — €50 per person, full day, hotel pickup.
The Trebišnjica — longest, weirdest, multi-disappearing
The Trebišnjica is the easterly river — it flows through the area near Trebinje, close to the Montenegro and Croatian borders.
What it’s known for
Europe’s longest “sinking river” — meaning the river disappears into karst caves multiple times along its course. Six known underground stretches, totaling ~90 km of underground flow, connect through the Dinaric karst plateau.
The water is exceptionally clear because it’s filtered through limestone — visibility 5+ metres in calm pools. This makes the river the source of:
- Trebinje’s drinking water
- The wine vineyards of the Trebišnjica valley (Vranac, Žilavka grapes)
- Several stećci (medieval Bosnian tombstone) sites, including the UNESCO Radimlja necropolis
Visiting
The Trebišnjica is best visited from Trebinje — Bosnia’s southernmost major town, 90 km southeast of Mostar (1.5 hours by car).
Highlights include:
- Trebinje Old Town — small, walkable, Ottoman-era
- Tvrdoš Monastery — 4th-century Serbian Orthodox monastery on the riverbank
- Vjetrenica Cave — Europe’s most biodiverse cave (220+ species), 30 min from Trebinje. See our Vjetrenica guide.
- Wine tasting at vineyards along the river
How they’re related (and aren’t)
Both rivers share:
- Slavic root name (from “trijebiti” = to clear/clean) — referencing their crystal-clear water
- Karst hydrology — flowing through limestone, with underground sections
- Mediterranean climate — flows fluctuate seasonally (low in August, peak Feb–Apr)
- Cultural significance — both have medieval monasteries, both supply local agriculture
They’re different in:
- Geography — completely separate watersheds (Trebižat → Neretva, Trebišnjica → Adriatic underground)
- Visitor draws — Kravica vs wine country
- Accessibility — Trebižat from Mostar in 40 min, Trebišnjica needs a longer trip
Which to visit (if you have to pick)
Visit Trebižat (Kravica) if
- You’re in Mostar with 1 day
- You want a swimming + waterfall day
- You’re with kids who want a beach-like experience
- You’re doing a “Bosnia highlights” tour
Visit Trebišnjica (Trebinje) if
- You have 4+ days in the region
- You’re interested in wine, monasteries, or caves
- You’re heading to Montenegro (Trebinje is on the way)
- You want the less crowded option
Visit both if
- You have 1 week+
- You want the full Herzegovina experience
- You appreciate karst hydrology curiosities
Both rivers from Mostar — sample week
Day 1: Mostar Old Town
Day 2: Trebižat day — Kravica + Pocitelj + Blagaj
Day 3: Mostar second day or Konjic
Day 4: Trebišnjica day — Trebinje + Vjetrenica + wine tasting (need a private transfer or rental car)
Day 5: Sarajevo
Day 6: Sarajevo
Day 7: Departure
The Trebišnjica day is harder to organize than the Trebižat day — there are no group tours from Mostar. We can arrange a private transfer from Mostar to Trebinje + return: €180 vehicle for the day, English-speaking driver, custom routing. WhatsApp +387 61 209 388.
Wikipedia disambiguation
Wikipedia has separate pages for each river — check spelling carefully:
- Trebižat (with “ž”, short) — the Kravica river
- Trebišnjica (with “š” + “nj”) — the Trebinje river
The Croatian “Trebižat” derives from “trijebiti” + diminutive suffix; the Serbian “Trebišnjica” uses a different ending. Easy to confuse if you don’t know Slavic linguistic patterns — easy to remember once you see the rivers.
Related reading
- Kravica Waterfall — main Trebižat attraction
- Trebizat River Waterfalls — Kravica + Kočuša
- Vjetrenica Cave — near the Trebišnjica
- Mostar Travel Guide — base for all river day trips
FAQ
Frequently asked questions
Are Trebižat and Trebišnjica the same river?
No — they're two distinct rivers in Bosnia and Herzegovina, both with names from the same Slavic root, both featuring underground sections. The Trebižat is shorter (51 km) and feeds Kravica Waterfall. The Trebišnjica is Europe's longest sinking river (96 km) near Trebinje.
Which river feeds Kravica Waterfall?
The Trebižat feeds Kravica. The waterfall sits about halfway down the river's surface course, dropping 25 metres over a 100-metre-wide travertine cliff. The Trebišnjica is a different river system in eastern Herzegovina.
Why do these rivers go underground?
Both flow through karst limestone — soluble rock that develops underground caves and sinkholes. The water disappears into these caves and re-emerges from springs (vrelo) downstream. Classic Dinaric karst hydrology.
Can you visit both rivers?
The Trebižat is easy to visit — it's at Kravica Waterfall (40 km south of Mostar). The Trebišnjica is at Trebinje (90 km southeast of Mostar) near the Montenegro border. Both worth visiting if you have 4+ days in the region.
