Postojna Cave hosts We Are Singing Ljubljana on 17 October

The We Are Singing Ljubljana festival will bring an international choral programme to Postojna Cave (Postojnska jama) in Postojna on 17 October 2026. The concert is part of a festival running from 16 to 18 October 2026 across Slovenia.

The organiser describes the cave as one of the festival venues and says choirs from around the world will perform music ranging from the Renaissance to the present day.

We Are Singing Ljubljana brings choral music underground

The festival schedule places the Postojna Cave programme on Saturday 17 October 2026. The organiser lists a 2.30pm meeting at the cave, followed by a cave tour before the concert and a gala concert beginning at 5pm.

The programme then gives a final song at 6pm. The organiser says the listed times are approximate and subject to change. Its festival page presents the programme as an invitation to hear participating choirs in Ljubljana and at the cave, while registration details are provided separately for choirs taking part.

The event page identifies the 2026 festival dates and the venue in the same programme. The festival programme for 17 October therefore gives travellers a specific cultural event connected to the cave rather than a general concert listing.

Postojna Cave turns its railway and halls into a venue

The cave tour gives the concert a setting shaped by underground transport and large natural spaces. The operator says the tourist route includes a ride on the underground train and a walk along the cave path, linking the festival programme with two defining parts of a visit.

The underground railway has operated since 1872, when the world's first railway in an underground cave opened at the site. The operator also identifies the five-metre Brilliant stalagmite and the chandeliers in the Dance Hall among the cave's named features. These details place the October concert within a visitor route that combines geological formations, engineered access and a performance space.

The operator states that the cave is open throughout the year and that tours are accompanied by guides. Further details about the route and visitor conditions appear in the official cave tour information.

Why the 17 October concert suits the cave setting

The organiser describes two main festival venues: Julija Betetta Hall at the University of Ljubljana Academy of Music and Postojna Cave. The contrast is part of the programme structure, with a formal music hall in Ljubljana paired with an underground venue in Postojna.

For visitors, the practical distinction is clear. The 17 October programme begins with a meeting and tour at the cave before the choral performance, so the published event combines a scheduled attraction visit with live music rather than presenting the concert as a separate city event.

Visiting Postojna Cave: what travellers from Western Europe should know

• The choral concert takes place at Postojna Cave on 17 October 2026, within the We Are Singing Ljubljana festival running from 16 to 18 October 2026.
• The published programme includes a 2.30pm meeting at the cave, a cave tour before the concert and a gala concert beginning at 5pm. The organiser notes that the times are approximate.
• Postojna Cave is in Postojna, Slovenia. The operator states that the attraction is open year-round, including Sundays and public holidays.
• The standard tour covers about 5 kilometres, with part of the route travelled by underground train and just over a kilometre completed on foot.
• The route includes a 200-metre path section with a 20% gradient and a similarly descending section. The operator says the cave temperature remains at 10 °C, so warm clothing and suitable footwear are appropriate.
• Guided commentary is available in Slovenian, Italian, English and German. Audio guides are also offered in several languages, making the visitor route accessible to international travellers.

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Frequently asked questions about Postojna Cave

When does We Are Singing Ljubljana take place at Postojna Cave?

The festival runs from 16 to 18 October 2026, with the Postojna Cave programme scheduled for 17 October 2026.

What is the programme at Postojna Cave on 17 October 2026?

The organiser lists a 2.30pm meeting, a cave tour before the performance, a 5pm gala concert and a final song at 6pm.

Where is Postojna Cave and how do you get there?

Postojna Cave is in Postojna, Slovenia. The published visitor information identifies the site as a year-round attraction with an underground train and a walking route.