On this day we take you to the biggest and worldwide known Slovenian cave system - the Postojna caves. Amazing two million years old and 21 km long system of underground caves is one of the most easily accessible networks of underground caves in the world. First, you will experience the ride by electric train, after that, a guided walk will follow through a series of cave halls with drop stones, pillars, and translucent curtains that create unforgettable impressions. The underworld system is home to the mysterious, unique, and rare amphibian Proteus Anguinus, or "baby dragon" as it is popularly called here. Back in the daylight, the trip will continue towards the astonishing castle of the robber knight Erasmus. For centuries dramatically hanging in over a 100-meter-high vertical cliff, it's waiting for you to enter and discover its secrets, legends, and myths. Driving through the green scenery, we return to Ljubljana.

The Slovenia in One Day tour, running small-group from Ljubljana since 2011: Lake Bled, Postojna Cave, and Predjama Castle in one day, with a licensed local guide and no more than 8 guests. One day, three of Slovenia's best-known places! You'll glide across Lake Bled on a traditional pletna boat to the island church, ride the underground train deep into Postojna Cave, and stand beneath Predjama Castle, built improbably into a cliff face. Between the sights, there's time to walk the lakeshore, taste the famous Bled cream cake, and hear the stories your local guide grew up with. Because the group stays small, up to 8 in a comfortable van rather than a big coach, the day stays relaxed and bends to what your group feels like. Admissions like the cave, the boat, and the castles are optional, so you only pay for the stops you choose, and we share the prices upfront. Run by Slovenia Explorer, an official Gray Line Slovenia licensee.

Discover the Slovenian coast and the Karst region. The first stop is the UNESCO listed Skocjan Caves, one of the largest and most fascinating Karstic sites in Europe with the Reka River running 200m below the surface. Next stop in one of the local taverns with the famous Karst air-dried prosciutto tasting, accompanied with the local wine Teran – produced only in the Karst region. Short stop at Lipica, the homeland of the white Lipizzaner. Pass the coastal towns of Koper, Izola and Portoroz to reach everyone’s favourite spot on the Slovenian coast – Piran, where you can get lost in its medieval narrow streets and houses and enjoy some free time. One last stop at Predjama Castle on the way to Ljubljana. Discover the secrets of the largest cave castle (Guinnes World Records!), located on a 123-meter high cliff, and learn about the local Robin Hood, the legendary knight Erazem. Return to Ljubljana in early evening hours.

Visit two of Slovenia’s top attractions in one afternoon on this small-group, half-day tour from Ljubljana. Begin at Predjama Castle, perched on a cliff high above the beautiful Inner Carniola region. Explore the chambers and stairwells and learn about the castle’s most famous resident, Erazem of Predjama. Then, continue to Postojna Cave. Ride a mini-train deep into the famous cave and tour the ethereal network of stalactites, stalagmites and caverns with a local guide. Numbers limited to eight people, ensuring a personalized experience. Postojna Cave is the best-known cave in the world. It is also the greatest tourist attraction in Slovenia and one of the world's largest Karst monuments and it is a must-see attraction when visiting Slovenia. You will start the tour with a unique and adventurous ride with a special train in one of the most diverse cave systems in the world, with 21 km of passages, galleries and magnificent halls, which offer an unparalleled experience of the underground world and a large diversity of underground animals – including the world-famous human fish (proteus anguinus). Beside Postojna Cave you will also have the chance to visit Predjama Castle. Our guide will show you this magnificent medieval castle perched high up in a vertical cliff in the idyllic village of Predjama. It is an interesting and romantic sight throughout the year: in the spring and summer its surroundings are abundant with blossoms and flowers, in the autumn it is clad in the colours of surrounding forests and it is at its most enchanting in the winter when the surrounding area is covered in snow.

This full-day tour will start in the heart of the Alps, where we will visit one of the largest natural attractions in Slovenia - Lake Bled. Besides the blue-green lake, we will be able to admire also the picturesque architecture of the Bled castle, which is built atop a cliff that rises above the lake. It is possible to reach the unique island in the middle of the lake using the traditional Pletna boat. Alternatively, you can decide for a leisurely stroll along the lakeshore, enjoying some of the most spectacular views of this picturesque lake. The road will then lead us to the Postojna cave, where we will observe one of the most famous karst caves in the world. While riding on the cave train, everyone will be fascinated by the cave's might and its karst phenomena. We will continue our trip and reach the unique and largest cave castle in the world - the Predjama Castle, which has been dominating perched high up in the cliff for 800 years.

Enjoy the visit to the glacial Lake Bled, the Slovenian Karst at Postojna Cave and a tour of the fairy-tale medieval Predjama Castle on a day trip from Ljubljana.