Set off from Zagreb in a small group to discover the biggest gems of Slovenia. Explore the most visited European cave – Postojna Cave. A fantastic web of tunnels, passages, galleries, halls and the astonishing diversity of karst features will create a mesmerizing experience. Embrace all of the beauties on the guided tour of the cave which also includes a train ride inside. Visit a picturesque Predjama Castle that is built within a cave mouth. Learn more about the fascinating history of the castle with an audio guide before heading to Ljubljana. Conclude the day with charming Slovenian capital, an enchanting city that will win your heart immediately. Discover variety of architectural styles, rich history and quirky bridge with dragons. Return to Zagreb.