Yes, visiting the interior of the fortifications is possible only by prior arrangement and reservation. The visit is conducted with a guide. The entrance fee for visiting the Alpine Wall fortification on Primož Hill is 7 EUR for adults and 5 EUR for children. In addition to the entrance fee, there’s an additional fee for hiring a guide (for 1 to 3 hours for groups with less than 15 people). The guide reservation should be made at least 5 days before your visit to the museum.
The price list is available at: https://www.parkvojaskezgodovine.si/cenik/.
At the summit of Primož Hill (718m) is a formidable underground artillery fortress of the Alpine Wall. The tunnels have a length of approximately 500m, and inside, you can find preserved combat positions, ammunition storage, and living quarters.
There’s a thematic educational path leading to the fortress. This path connects the Park of Military History Pivka, the former military training ground at Kot 110 (613m), and Primož Hill (718m). Visitors can walk to the fortifications on their own. The hike to the summit takes about 30 to 45 minutes.