Boracko Lake
The largest glacial lake in the country, below Prenj near Konjic, used for swimming and as a walking base.
Updated 12 October 2026
Boracko jezero lies at around four hundred metres below the northern flank of Prenj, a glacial lake about eight hundred metres long left by ice that came down off the massif, and it is the largest of its kind in Bosnia and Herzegovina. The water is clear and cold, warming enough for swimming by midsummer, and the shore has campsites, a few pensions and restaurants and a small beach, used heavily by Konjic and Mostar residents at weekends. It is the usual starting point for walking routes up onto Prenj and for rafting on the upper Neretva, which runs nearby. Wooden bungalows and camping are the accommodation.
What's there
- The glacial lake - the clear cold water below the massif.
- Prenj above - the mountain wall rising south-west of the lake.
- The shore camps - the campsites and pensions around the water.
- Walking access - the routes starting from the lake onto the massif.
When to go
June to September for swimming and walking; the water is cold before midsummer. Weekends fill the shore. Autumn is quiet and colours the surrounding forest. Winter closes most facilities.
What to expect
The shore is developed with campsites and can be crowded and littered at weekends. The water is cold even in August. Facilities are basic. The road in is narrow.
Nearby
Konjic lies northwest; Prenj rises to the west.
Key facts
Source: Wikidata, item Q1272636, read on 18 October 2026.
What to pack for Boracko Lake
Chosen from what this place is for. Tap a kit for the full checklist.
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Quick-dry clothing - Board shorts or synthetics that shrug off spray and dry fast. Find on Amazon
- Shelter suited to the place - Tent, tarp or hut booking - match it to the terrain and rules. Find on Amazon
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.



