Postojna Cave and Predjama Castle with Ljubljana from Zagreb 1
Postojna Cave and Predjama Castle with Ljubljana from Zagreb 2
Postojna cave
Postojna Cave and Predjama Castle with Ljubljana from Zagreb 4
Ljubljana
Postojna Cave and Predjama Castle with Ljubljana from Zagreb 6
Postojna Cave Slovenia
Postojna Cave and Predjama Castle with Ljubljana from Zagreb 8
Postojna Cave and Predjama Castle with Ljubljana from Zagreb 9
Postojna cave
1 / 10

Postojna Cave and Predjama Castle with Ljubljana from Zagreb

(5)
Postojna, Slovenia
Cultural ToursDay Trips & ExcursionsNature Tours
Instant confirmationSecure checkoutNo hidden fees

About this activity

A full-day immersion into Slovenia's most striking natural and historical landmarks, combining a subterranean journey through Europe's largest show cave, a clifftop fortress with centuries of legend, and Ljubljana's vibrant riverside charm—all departing from Zagreb.

Discover the biggest gems of Croatia’s neighbor, Slovenia, on a day trip that blends spectacular nature, dramatic history, and a charming capital. Begin at Postojna Cave and step into a mesmerizing underground world of karst formations. Enjoy a guided visit through its impressive halls and passages, including the famous train ride inside the cave.Next, continue to Predjama Castle, a remarkable fortress built into the mouth of a cave beneath a towering cliff. Explore with an audio guide and uncover the legends and stories that made this site so unique. End the day in Ljubljana, Slovenia’s enchanting capital. Stroll along the riverside, admire the mix of architectural styles, and spot the city’s iconic Dragon Bridge before returning to Zagreb. Throughout the journey, your expert guide shares engaging stories, local insight, and the little details that make the day truly memorable.

Highlights

  • ✓Underground train ride through Postojna Cave's cathedral-like chambers and stalactite formations
  • ✓Predjama Castle perched dramatically at a cliff face, built into a cave entrance
  • ✓Audio-guided exploration of castle history and local folk tales
  • ✓Ljubljana's Dragon Bridge, Triple Bridge, and architectural blend of Art Nouveau and modern design
  • ✓Riverside strolls and local insights from an expert guide throughout the day

Insider tips

  • ★Wear comfortable walking shoes and a light jacket—caves maintain cool temperatures year-round
  • ★The underground train is the highlight; sit toward the back for better photo angles of the cave halls
  • ★Ljubljana's city centre is best explored on foot; allow time to stop for local coffee or gelato by the river

Good to know

  • •Total duration is 11 hours including travel from Zagreb; departures early morning, return evening
  • •Cave entrance requires moderate fitness for walking and short climbs on lit, safe pathways
  • •All entry fees and guided portions are included; audio guide provided at Predjama Castle

Who it's for

History and geology enthusiasts seeking dramatic natural formations and medieval castlesFamilies with children aged 6+ (train ride and cave exploration appeal to kids)Day-trippers from Zagreb wanting a curated multisite experience without self-drivingPhotography lovers chasing unique architectural and underground scenery

Best time to visit

Spring (April–May) and autumn (September–October) offer pleasant cave temperatures and comfortable walking conditions in Ljubljana. Summer is popular but crowded; winter is quieter but caves remain accessible.

Frequently asked questions

Available
From€170
per person