Marble Cave

Mramornica — the Marble Cave — is the quieter, less-visited alternative to Baredine, and one of the largest caves in Istria. The walls have a marble-like sheen (that’s where the name comes from), and the formations inside are the real thing.

What to Expect

The guided tour is about 40 minutes — stalactites, stalagmites, and rock in colours from chalk white to rusty red. The main chamber is huge, with stalagmites up to 13 m tall — taller than a house.

The Wine Twist

The cave stays at a constant 14°C, so a local winery ages their wine in barrels down here. You can see them during the tour and taste the wine afterward.

My Tips

Combine with lunch nearby. The cave is on a family agrotourism property — you can have a meal with local produce after your visit.

Good for hot days. When it’s 35°C outside, ducking into a 14°C cave is refreshing.

Less crowded than Baredine. If you want a cave experience without the tour buses, this is a good choice.

About an hour and a quarter from the house — roughly 80 km, up in northwestern Istria near Brtonigla.