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Tour Highlights

  • Fabulous location for a ‘packed to the rafters’ short break away of freshwater swimming, and walking

  • Swim to the picturesque 17th Century pilgrimage church on Bled Island

  • Enjoy the challenge of swimming the 4km length of beautiful Lake Bohinj, Slovenia’s largest lake

  • Walk along stunning trails through Triglav National Park to dip in the cool waters of the Kazjak waterfall

  • Swim down the glacial-fed Soca river

Enjoy a freshwater swimming holiday in Slovenia and discover why the country is considered to be one of Europe's true hidden gems. Swim in the emerald green waters of Lake Bled and the crystal clear Soca River, and take in the stunning scenery of Triglav National Park on this unforgettable short escape.

We are based in the small town of Bohinj, the central hub for all our excursions by land and water. This includes a swim to the 17th Century church on Bled Island, crossing the beautiful Lake Bohinj, and exploring the National Park and Kazjak waterfall by foot.

To get the most out of this amazing experience, we will be combining swims with walks to see as much of the local area as possible, with occasional help from a canoe or row boat. In order to experience the best swimming that Slovenia has to offer, we spend some time travelling to and from different locations. This does lead to quite a busy trip, with evening returns to the hotel on Days 2 and 3.

With such an action-packed four day adventure, we know it's important to recharge your batteries and the Hotel Jezero on the banks of the Bohinj Lake is the perfect place for it. The hotel offers comfortable accommodation, beautiful scenery, friendly staff and there's even a pool if you really just can't get enough of the swimming!

Who is this trip for?

This trip is for those swimmers who love freshwater swimming and inspiring mountain scenery. Distances average around 4km a day, so this trip suits either the experienced open water swimmer or those aiming to transition from 2-3 km pool-based swims.

What's included?

  • Fully guided swimming holiday in Slovenia
  • Swim guides and full safety escort on all swims
  • Technique coaching
  • Three nights accommodation
  • All breakfasts

Whats not included?

  • Travel to and from the start of the tour
  • Lunches and evening meals

Related Links

Day 1

We meet at the hotel bar for welcome drinks and a short briefing on the plans for the rest of the trip. The acclimatisation swim is held the next morning.

Day 2

We take the short journey into Bled where we hold an acclimatisation swim, followed by a day of swimming in this famous lake. The first swim is across to Bled Island, home to the Pilgrimage Church where we walk up the 99 steps and enjoy the stunning view. It’s then back into the water as we cross to the lake’s western shore. After a stop for lunch we take a short 20 minute walk up to Mount Osojnica, which offers stunning views of the lake and the surrounding mountains. On our return to the shore, we swim a full length of the lake, finishing at the lakeside lido where there will be time for a stroke analysis session with your swim guides. The late afternoon/evening is free for you to either enjoy the view over Lake Bled from the medieval castle, get lost in the shops, cafes and restaurants of the town center or just to relax by the lake, before meeting up again to travel back to the hotel.

Day 3

After breakfast we venture into Italy and onto the shores of the idyllic Lago del Predil for the first swim of the day. It’s then a short drive back into Slovenia for lunch at the popular alpine town of Bovec. Following this, we head into the remote centre of the Triglav National Park, with a cool, yet exhilarating dip underneath the secluded Kozjak waterfalls. It’s then time to head to the emerald green Soča River, for a swim where the river takes some of the strain. The scenery is outstanding and the river swim makes a striking contrast to the lakes of the previous few days. The adventure continues on the way home, with a memorable return journey on the car train, taking us through the various lengthy tunnel systems to Bohinj arriving back just in time for dinner.

Day 4

After the previous days, we have an early chance to stretch our legs, as we walk the length of Lake Bohinj. Following the walk we swim the 4km length of Slovenia’s largest lake. We may be accompanied by the schools of wild trout which frequent the lake. The dark green forests and surrounding mountain peaks guide our way. There are suitable get-out points along the way for those that would prefer a shorter swim. The swim finishes within 50 metres of the hotel, so you can use the sauna and showers to finish off your trip.

Trip Schedule

Start Point: Hotel Jezero, Lake Bohinj.

Start Time: 20:30 on Day 1

Finish Point: Hotel Jezero, Lake Bohinj

Finish Time: 14:00 on Day 4

Trip Information

Equipment Checklist

In addition to your daily non-swimming clothes, we also recommend that you bring the following items:

Item Item
Swimming Costumes (x2) Towel
Swimming Googles* (x2) Small Daypack
Sunhat and Sunglasses Sweater / Fleece
Waterproof Sun Cream Windproof / Waterproof Jacket
Walking Sandals / Shoes Wetsuit
Aqua Shoes / Sandals

*Try to bring one clear lens and one tinted lens for different light conditions.

Please note that SwimTrek will supply swim hats and provide water and electrolyte drinks in shared water bottles on your safety boat. If you prefer to use your own drink bottle, please feel free to bring one along. If you would like to use a wetsuit, rash vest or fins during your swims, please ensure that you bring these with you.

Swimming Distances

Swim Distances
Osojnica – Bled Island 1km
Crossing of Lake Bled 2km
Socca River 2km
Bled Island - Osojnica ¾km
Crossing of Lago del Predil 1½km
Crossing of Lake Bohinj 4km

Environmental Lake Swimming

These lakes are some of the world's cleanest freshwater lakes. However, water quality can be an issue with water runoff from fields. Bluegreen algae and Weil’s disease are all possible contaminants. If you do feel unwell at any stage during or after the trip, you should go to your GP immediately, telling them what you have been doing.


Please note that, due to this area being an alpine region, weather conditions are unpredictable and temperatures can drop overnight. Therefore, the temperatures below are indicative and should be used as a guide only.

Approximate temperatures for Lake Bled:

Month Water Temperature Air Temperature
July 19-21˚C / 66-70°F 21-23˚C / 70-73°F
August 21-23˚C / 70-73°F 23-25˚C / 73-77°F

Approximate temperatures for Lake Bohinj:

Month Water Temperature* Air Temperature
July 17-19˚C / 63-66°F 21-23˚C / 70-73°F
August 19-21˚C / 66-70°F 23-25˚C / 73-77°F

*Please note that Lago del Predil and Soča River may be 3-5˚C cooler than these temperatures.

Walking Distances

Most walks take place on recognised paths and tracks, however there may be cases where we walk along trails or other unsealed surfaces and care should be taken in these areas. The walk on Lake Bled gets quite steep and rocky towards the top, so a pair of sturdy trainers or walking sandals will be required.

Group Size and Boat Support

This trip has a maximum group size of 14. The group will be split into a maximum of three groups, based on speed, with each group being accompanied by their own safety vessel/escort. 

Boat support on this trip includes a combination of kayaks and canoes to be piloted by your SwimTrek guides and local safety team. Please note that this boat support is subject to change without notice and cannot be guaranteed.

Getting There

To get to Lake Bohinj, the easiest option is to fly into Ljubljana Airport and book a transfer to the hotel. There are a wide range of airlines serving Ljubljana from various British and European cities.

While we have outlined various travel options below, they are subject to change and should be used as a guide only. We suggest that you use Skyscanner to search for alternative flight options.

Whichever route you choose to take, we recommend confirming your flights and other travel arrangements as early as possible in order to avoid price rises and availability issues.

Getting there via Ljubljana

A small selection of the airlines which fly into Ljubljana from various European cities are included below:

Airline Departure Airports
Adria Amsterdam, Brussels, Frankfurt, London Gatwick, Munich, Paris
Easyjet London Gatwick, London Stansted
WizzAir Luton

Transfers from Ljubljana Airport

From Ljubljana airport, you can get a transfer directly to the Hotel Jezero. The transfer costs €70 and takes approximately one hour. Please contact Outdoor Slovenia on +386 40865386 or email them directly at We recommend using the SwimTrek discussion page in the month leading up to the trip to arrange sharing the transfer with other guests to reduce your costs.

Travel from Ljubljana via Bus

There are frequent shuttle buses that run from Ljubljana Airport to the town of Kranj which takes approximately 20 minutes and costs €3-€4. From here you can get a connecting bus to Bohinj, which usually leaves about 30 minutes after you arrive in Kranj. The journey takes an hour and costs €9 . You can view the bus timetable here.

Travel via Train

Zagreb, in neighbouring Croatia, offers a regular, scenic, train service to Ljubljana. Both Zurich and Munich have direct trains to the Slovenian town of Jesenice. Overnight services are also available via Oebb. From Jesenice, you will need to change for the connection to Bohinj station. The bus leaves hourly from outside the station and the Hotel Jezero is a 15-minute bus ride away.

Getting there via other European countries

You can also travel to Slovenia via neighbouring countries. Trieste airport in Italy is south-west of Bohinj, Zagreb in Croatia is to the east, and the Austrian airports of Graz and Klagenfurt are to the north.

Practical Information


Our accommodation is in the beautiful Hotel Jezero, a 4-Star hotel that sits directly in front of Lake Bohinj. Bedrooms are based on twin-share en-suite facilities with a limited number of single supplements availabile. If you require additional nights’ accommodation before or after the tour, this can be arranged by emailing or calling the hotel directly on +386 4572 9100.


All breakfasts are included in your trip price, however lunches and dinners are at your own expense. This allows you to enjoy the cuisines on offer in the various restaurants and cafes or have a relaxing picnic on the grassy banks surrounding the lakes and rivers.

Extra Expenses

You should bring extra money with you to cover such items as dinners, drinks, entertainment, souvenirs, etc. The local currency in Slovenia is the Euro (€). ATMs are widely available both at the airport and in Bohinj.

Health Information and Recommended Vaccinations

For comprehensive health information for people travelling to Slovenia, including all recommended and required vaccinations, please visit Travel Health Pro. Please note that this information is subject to change and you should re-check this site regularly prior to your trip.

Travel Plugs & Electricity

For a useful source of information on the different electrical outlets, electrical plugs, and electric sockets, please visit

  • I absolutely loved it, the water quality and the surrounding landscapes blew me away!

    Phillipa, UK - 2017
  • Our guides Sian and Telly were absolutely brilliant. They were patient, encouraging, supportive and funny. Amazing experience, thank you SwimTrek!

    Eleanor D, UK - 2017
  • A unique way to see stunning scenery, to exercise and forget about work and life at home for a few days. SwimTrek are a really excellent company and communication was really good.

    Erica P, UK - 2017
  • Thanks to Swim Trek and our guides, Sian and Tele and support staff Evo and Nina, we had a trip that will be a treasured memory. We will be back next year with friends and we thank everyone for a wonderful life experience.

    Paul C, UK - 2017
  • Amazing lakes, amazing scenery, amazing people, amazing experiences!

    Pete, D. UK- 2017
  • Stunning swims in beautiful locations run by fabulous swim trek guides - what more do you need?

    Perle C, Netherlands- 2017

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Hotel jezero  bled  small
Hotel Jezero

Hotel Jezero is the pearl of Bohinj located on the banks of its picturesque lake. Shadowed by the Julian Alps, this hotel is the perfect base for your weekend of walking and swimming as you can relax back on the hotel deck overlooking the lake or continue your activity in the hotel pool or gym.