Sutjeska National Park · Tjentište, BiH
Hiking · 1 day

Trnovačko Lake – the Heart Lake

Crystal-clear waters at 1,517 m, framed by Maglić, Bioč and Volujak — Bosnia's three highest peaks

Full day Max 25 people Beginner-friendly Sutjeska NP · Tjentište Min age 7
Your adventure snapshot

One lake. All day. Worth every step.

Trnovačko Lake is shaped like a heart — and once you see it you'll understand why it's become the most photographed place in Bosnia. Tucked at 1,517 m between Maglić (2,386 m, Bosnia's highest peak), Bioč and Volujak, the lake sits in a dramatic natural bowl that feels like somewhere between a dream and a geography lesson.

The day begins with a 4×4 ride up to the Prijevor plateau at 1,668 m, followed by a stop at Dragoš Sedlo — a viewpoint that opens up the full sweep of Europe's largest primeval rainforest, Perućica, with the Skakavac waterfall visible in the distance. From there it's a 1.5-hour hike at an easy pace to the lakeshore.

You'll spend 3 to 4 hours at the lake — swimming in the crystal-clear water, eating a packed lunch on the shore, photographing the reflections and simply sitting with one of the most spectacular views in the Balkans. Return is by the same route, with the light now shifted and the whole landscape transformed.

Trip at a glance

  • Duration
    Full day (1.5 hr hike each way + 3–4 hrs at lake)
  • Group size
    4–25 people
  • Fitness level
    Beginner-friendly — no experience required
  • Minimum age
    7 years
  • Meeting point
    Green Villas, Tjentište, Sutjeska NP
  • Season
    June – September (swimming season)
Tour highlights

The moments you'll brag about later

The Heart-Shaped Lake at 1,517 m

825 m long, 715 m wide and shaped like a heart from above — Trnovačko is one of the most striking mountain lakes in the Balkans. Clear and colourless in the shallows, intense turquoise-green in the deeper eastern section.

Dragoš Sedlo Viewpoint

Before the hike begins, your 4×4 stops at Dragoš Sedlo for a panorama over Perućica — Europe's largest primeval rainforest — with the Skakavac waterfall visible far below. A view that frames the scale of the wilderness you're in.

Swimming Under Three Peaks

Maglić (2,386 m — Bosnia's highest), Bioč and Volujak surround the lake on three sides. Swimming here, with those ridgelines above you and nothing but silence, is something most people remember for a long time.

Lunch on the Lakeshore

A homemade packed lunch at the water's edge — included in the tour. Three to four hours at the lake means there's no rush: time to eat, swim, photograph and simply exist in one of Bosnia's most remarkable places.

Inclusions

What's included

Included

  • All meals during the arrangement (incl. packed lake lunch)
  • Entrance fees and national park taxes
  • Licensed professional mountain guide
  • Transport by 4×4 terrain vehicle to Prijevor plateau
  • Accommodation residence tax

Not included

  • Flights and airport transfers
  • Travel insurance
  • Alcoholic and non-alcoholic beverages
  • Personal souvenirs
1 day · full day

The story of your trip, one day at a time

Your guide briefs you at the villa before the 4×4 ride up to the plateau. Exact timing shifts with the season and the group — here's how a typical day unfolds.

The day starts at Green Villas, then a 4×4 hauls you up through the forest to Prijevor plateau. A stop at Dragoš Sedlo opens the view across Perućica. Then the trail descends gently to the lake — 1.5 hours at an easy pace. Three to four hours at the water's edge, then the same route back as the light turns golden.

  • 08:30
    Briefing & departureMeet your guide at Green Villas, Tjentište. Kit check, day overview and transfer begins.
  • 09:30
    Dragoš Sedlo viewpointFirst stop on the Prijevor plateau — panoramic views across Perućica primeval forest and the Skakavac waterfall visible in the canopy below.
  • 10:00
    Hike to Trnovačko LakeTrail departs from Prijevor plateau (1,668 m) and descends gently to the lakeshore over 1.5 hours. Well-marked mountain path, no technical terrain.
  • 11:30
    Arrival at Trnovačko Lake (1,517 m)First views of the heart-shaped lake surrounded by Maglić, Bioč and Volujak. Time to swim, photograph, explore the shoreline and simply take it in.
  • 13:00
    Lakeshore lunchHomemade packed lunch on the shore — included in the tour. Plenty of time to stay in the water, dry off and enjoy the surroundings.
  • 15:00
    Return hike to Prijevor1.5-hour hike back to the plateau with the afternoon light now on the peaks. Different views, same trail.
  • 17:00
    Vehicle return to Tjentište4×4 descent to Green Villas. Tour concludes at the centre — evening is yours.
Dates & availability

Best visited June through September

The lake is accessible from May through October, but June to September is the sweet spot — snow is fully gone, the trail is dry and the water is warm enough to swim. July and August are the busiest months; June offers the best balance of accessibility and quiet. Get in touch and we'll find the right date for your group.

From our travellers

Take it from them

3.9 ★★★★☆ 38 reviews
5 ★
42%
4 ★
32%
3 ★
18%
2 ★
8%
1 ★
0%
Dino K.
Bosnia · July 2025
★★★★★

The heart-shaped gem surrounded by nature's grandeur is a true retreat. The hike from Prijevor, the stop at Dragoš Sedlo with its panoramic views, and the crystal-clear waters make this adventure a must. We swam for over an hour — the water is cold but you forget about it immediately.

Gustavo M.
Brazil · August 2025
★★★★☆

A nature lover's dream. The lake nestled among rocky cliffs and embraced by the slopes of those three peaks — I've been to a lot of mountain lakes and this one is genuinely different. The guide knew the geology and history of every peak. Lunch by the water was a perfect touch.

Naomi F.
Netherlands · June 2025
★★★★☆

Nothing short of a marvel. The surrounding peaks, the crystal-clear waters and the sense of total remoteness — it felt like we had the whole mountain to ourselves. The hike itself is not difficult at all; my 10-year-old managed it without complaint. Go in June for fewer people.

Thomas & Lea B.
Germany · September 2025
★★★★☆

We almost skipped this because the weather looked uncertain — so glad we didn't. The clouds actually made the lake even more dramatic. The viewpoint over Perućica at Dragoš Sedlo was an unexpected highlight. Four hours at the lake felt like the right amount of time.

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Questions, custom dates or a private group? We're a small local team and reply fast — usually within a few hours.

Email us +387 65 381 258
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  • Sutjeska National Park, Tjentište