Those who want to join the excursion to the Slovenian coast are asked to pay the additional fee of 60 €, which includes the entrance fees for Postojna Cave and Hrastovlje, tourist guide and lunch at Piran. The fee is to be paid at the time of registration on Friday.

We will start our one-day trip with the visit of the famous Postojna cave with its fantastic web of tunnels, passages, galleries and halls. The astonishing diversity of Karst features as well as easy access are certainly the main reasons for the popularity of the cave and a large number of visitors, which has already reached 35 million in 200 years.

After that, we will take a look at the Predjama Castle which reigns over the surrounding area, perched high up in a vertical cliff, 9 km from the Postojna Cave, in the idyllic village of Predjama. It is an interesting and romantic sight throughout the year: in the spring and the 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. It was referred to in writing for the first time in 1202.

We will be continuing our trip with a visit to Hrastovlje, a village in the Municipality of Koper in the littoral region of Slovenia. It is best known for the Church of the Holy Trinity, which contains a late-medieval Danse Macabre fresco.

After this ghostly, but fascinating confrontation with the art of life and death, our way will lead us to the Slovenian coast, where we will stop in the picturesque town of Piran. It is one of the three major towns of Slovenian Istria. The town has much medieval architecture, with narrow streets and compact houses. Piran is the administrative centre of the local area and one of Slovenia's major tourist attractions. For lunch, we will enjoy seafood in one of its traditional restaurants located by the seaside.

On our way back to Ljubljana, we will stop at one of the jewels of Slovenian Karst architecture - the small traditional Karst village Štanjel, where we will - among other sightseeings - visit a small wine cellar with traditional beverages.