When to go
Snowmelt fills the waterfalls, gorges and karst springs from April to June — the loudest water of the year, and the paths are open again.
Seasons are a rule of thumb from the type of place and its elevation unless the owner has set them by hand.
Savica Falls is a waterfall in the Julian Alps above Lake Bohinj in the Gorenjska region, where the Savica stream drops from a rock wall and forms the source of the Sava Bohinjka. The falls are reached by a stepped forest path from the end of the road west of the lake, a short but steady climb suited to most walkers.
Stegovnik Falls (Stegovniški slap) is a waterfall in the Gorenjska region of northern Slovenia, below the slopes of the Stegovnik mountain in the Karawanks area near Tržič. It is a quiet spot for a short forest walk and a look at water dropping over rock. Expect a rural approach on forest roads and paths rather than a developed visitor site.
Boka is a waterfall in the Goriška region of western Slovenia, where a karst spring bursts from a rock wall and drops into the Soča valley. It is one of the most powerful waterfalls in the country, especially after rain or snowmelt. It lies near Bovec, and a short uphill path leads to a viewpoint above the falls.
Peričnik is a waterfall in the Gorenjska region, in the Vrata valley above Mojstrana in the Julian Alps. It is one of the best-known falls in Slovenia, and a path leads behind the curtain of water, so you can look out through it. It is a short walk up from the road into the Vrata valley.
Kozjak is a waterfall on the Kozjak stream near Kobarid in the Goriška region, where the water drops into a pool inside a narrow rock chamber. It is worth visiting for this unusual enclosed setting, reached along a short walking path with wooden walkways. The walk starts from the Kobarid area and suits an easy half-day outing in the Soča valley.
Bistriški šum is a waterfall in the Podravska region of northeastern Slovenia, on the slopes of the Pohorje hills above Slovenska Bistrica. It is a quiet natural spot where a forest stream drops over rock, suited to a short stop or part of a longer walk. Expect a woodland path rather than a paved route, so sturdy shoes are useful.
Grmečica is a small set of waterfalls on a stream in the Gorenjska region of north-western Slovenia. It is a quiet spot to stop and watch the water drop over the rocks, away from the busier sights of the area. Expect a short walk on forest paths to reach it, so sturdy shoes are useful.
Kobilji curek is a waterfall in the Osrednjeslovenska region of central Slovenia, where a stream drops over a rocky step in a wooded valley. It suits a quiet half-day outing from Ljubljana, reached on foot along forest paths south of the city.
The Tolminka is a mountain river in the Goriška region of western Slovenia, and this point marks its spring area in the hills above Tolmin. It is a quiet spot to see where clear Alpine water emerges before flowing down toward the town. Reaching it means a walk on mountain terrain north of Tolmin, so sturdy footwear is sensible.
Klevevž is a spring in southeastern Slovenia, in the hilly countryside of the Dolenjska region. It is a quiet natural spot suited to a short stop on a day trip through the area. The spring lies off the main roads, so plan to reach it on foot along local paths.
The Izvir Soče is the source of the Soča (Isonzo) river, where the water emerges from a karst spring in the mountains of the Goriška region. It is worth visiting to see the river begin its course in clear, emerald-coloured water before it flows down the Trenta Valley. The spring lies in the upper Trenta Valley in Triglav National Park, reached by a short but steep mountain path.
Gospodična is a spring in the Gorjanci hills of southeastern Slovenia, near the border with Croatia. It is a traditional stop for hikers crossing the forested ridge, with a mountain hut close by. The usual approach is a forest walk from the Novo Mesto side or from nearby villages on the Gorjanci slopes.
Izvir Hublja is the karst spring of the Hubelj river, emerging at the foot of the Trnovo plateau above Ajdovščina in the Goriška region. It is a quiet spot to see water flowing straight out of the rock before it runs down toward the Vipava Valley. The spring lies just above the town, reachable by a short walk from Ajdovščina.
Izvir Kamniške Bistrice is the source of the Kamniška Bistrica river, where clear, cold water emerges at the head of the valley beneath the Kamnik–Savinja Alps. The spring and its small green pools make a quiet stop in an alpine setting. It lies in the Osrednjeslovenska region north of Kamnik and is reached by a short, easy walk from the valley.
Izvir Krke is the karst spring where the Krka River emerges from beneath the hills in central Slovenia's Osrednjeslovenska region. It is a quiet spot to see a major river begin, with clear water flowing out at the foot of a rocky slope. The spring lies in the upper Krka valley and is reached by a short, easy walk, which pairs well with a day out in the surrounding countryside.
Izvir Nadiže is the spring of the Nadiža stream in the Tamar valley near Planica, at the foot of the mountains above Rateče in the far northwest of Gorenjska. The clear water emerges from the rocky slope beneath the peaks, making it a quiet stop on an easy valley walk. It is usually reached on foot from the Planica area, combined with a visit to the Tamar meadows.
Predjama Castle is a medieval fortress built into the mouth of a cave halfway up a sheer cliff face. Its setting, with the castle walls merging into the rock and a cave system behind them, makes it one of the most recognisable sights in Slovenia. It lies in the Primorsko-notranjska region, a short drive from Postojna, and is often combined with a visit to Postojna Cave.
Ljubljana Castle is the medieval fortress on the hill above the old town of Ljubljana, in central Slovenia. From its walls and lookout tower there are wide views over the capital's rooftops and, on clear days, toward the Alps. The castle can be reached on foot by paths from the old town or by the funicular railway.
Bled Castle is a medieval castle standing on a steep cliff above Lake Bled in the Gorenjska region. From its terraces there is a wide view over the lake, the island church and the surrounding Julian Alps. The castle sits directly above the town of Bled and can be reached on foot by a short but steep path from the lakeshore.
Maribor Castle is a castle in the centre of Maribor, Slovenia's second-largest city, in the Podravska region of the northeast. It stands at the edge of the old town and houses the regional museum, making it an easy stop on a walk through the city streets.
Ptuj Castle stands on a hill above the old town of Ptuj, one of the oldest towns in Slovenia, in the Podravska region. It houses a regional museum, and the castle terraces look out over the red rooftops and the Drava River. The walk up from the town centre is short, along a cobbled lane.
Branik Castle, known in Slovenian as Grad Rihemberk, is a castle with origins in the 13th century, standing above the village of Branik in the Goriška region. Its walls and towers rise over the lower Vipava Valley, and the castle hill offers views across the surrounding countryside. It lies a short drive from Nova Gorica and can be combined with a walk around the village below.
Kieselstein Castle is a historic castle in the centre of Kranj, the main town of the Gorenjska region. Its compact building stands in the old town, which sits on a rocky spur above the Kokra and Sava rivers. It is easy to include in a stroll through Kranj's old streets on foot.
Kostel Castle is a castle ruin in southeastern Slovenia, standing on a hill above the Kolpa valley close to the Croatian border. The remains of its walls and towers give a sense of how the stronghold once watched over this border area. It lies in the Kostel area of the Kočevje region, a quiet stop for those exploring the Kolpa river.
Postojna Cave is a large karst cave system on the edge of the town of Postojna in the Primorsko-notranjska region. Visitors travel deep into the cave by a small underground train before continuing on foot past halls of stalactites and stalagmites, and the cave is also known as home to the olm, the blind cave salamander. It is an easy day trip from Ljubljana, and the visit is a guided underground walk on paved paths.
Škocjan Caves are a karst cave system in the Kras region of southwestern Slovenia, where the Reka River disappears underground. The system is listed as a UNESCO World Heritage Site and is known for its vast underground canyon, crossed by a bridge high above the river. The caves lie near Divača, between Postojna and the coast.
Škocjan Caves are a cave system in the Karst of the Obalno-kraška region, where the Reka river disappears underground and flows through a deep canyon inside the cave. The system is a UNESCO World Heritage Site, known for its vast underground chambers and the bridge high above the river. The caves lie near Divača and are visited on guided tours.
This entry marks a cave near Kostanjevica na Krki, the small town in the Posavje region known for its old centre on an island in the Krka River. The karst cave lies at the edge of the hills just outside town and is a natural stop to pair with a stroll around the riverside centre. Base yourself in Kostanjevica na Krki in the lower Krka valley and reach the cave on a short trip from town.
Cross Cave (Križna jama) is a karst cave in the Primorsko-notranjska region of Slovenia, known for its chain of underground lakes and its rich cave fauna. It is one of the country's best-known caves and is visited in small guided groups rather than on paved walkways. The cave lies on the karst uplands near the Lož Valley, a short drive from Cerknica Lake.
Vilenica is a karst cave on the Karst plateau in southwestern Slovenia, near the village of Lokev not far from Sežana. It is widely regarded as one of the oldest show caves in Europe, with large halls decorated by dripstone formations. It makes an easy addition to a day exploring the Karst region and its villages.
Divje babe is a cave in the Goriška region of western Slovenia, set above the Idrijca valley. It is known as an archaeological site where Neanderthal-era finds were made, including a perforated bone often discussed as a possible flute. Expect a short uphill walk on a forest path to reach the cave entrance.
Pekel, known in English as Hell Cave, is a karst cave in the Savinjska region of eastern Slovenia, in the hills near Žalec. It is one of the few show caves in this part of the country and makes a short underground stop on a day out in the Lower Savinja Valley.
Vintgar Gorge (Blejski vintgar) is a narrow gorge carved by the Radovna River, shared by the municipalities of Bled, Gorje and Jesenice in the Gorenjska region. A path of wooden walkways and bridges follows the river along the steep rock walls, passing rapids and pools, and ends near the Šum waterfall. It lies just north of Bled, making it an easy half-day walk from the lake.
Mostnica Gorge is a narrow gorge carved by the Mostnica stream in the Gorenjska region, near Stara Fužina above Lake Bohinj. The water has shaped the limestone into potholes, pools and a natural stone bridge, with footbridges crossing the channel along the way. A marked forest path follows the gorge upstream toward the Voje valley, making it an easy walk of moderate length.
Pekel is a gorge in the Osrednjeslovenska region of central Slovenia, cut by a stream into the hilly terrain south of Ljubljana. It suits a short nature outing where you can follow the water through the narrow, wooded valley. Expect an uneven forest path rather than a paved walk, so sturdy shoes are a good idea.
