The 2026 Summer Season Is Underway

The 2026 summer season is underway! We welcome visitors from across Sweden and Europe to Siknäsfortet.

This summer we've expanded our guided tour program with tours every hour on the hour from 10:00 to 16:00, June–August. Our guides have completed thorough training in the fortress's history and are ready to take you 40 meters into the mountain.

New this summer: the ability to book private groups for team building and conferences directly through the website. We also offer overnight stays for up to 20 people in the fortress's own dormitories.

Book your spot at siknasfortet.se or contact us directly. See you underground!