Sail out to the UNESCO-listed Kungsholms Fortress — Sweden's best-preserved naval fortification — with an expert heritage guide. A once-in-a-lifetime encounter with 17th-century maritime defence strategy set on a stunning island in the archipelago.
What to expect
Board the heritage vessel M/F Wittus from Karlskrona harbour for a scenic crossing through the archipelago to Kungsholms Fortress. A certified World Heritage guide escorts you through the remarkable circular fortifications, cannon batteries, and underground passages dating to the 1680s. The island setting, with sweeping sea views and dramatic stonework, is utterly photogenic. Tours depart at 10:00 and return by approximately 13:15, keeping your afternoon beautifully free.
Good to know
Tours run on selected dates in summer and September (e.g. Sept 5–6, 26–27 in 2026); book well in advance as group sizes are strictly limited. The boat departs from Fisktorget harbour — a short walk or taxi from the cruise terminal. Confirm your ship's all-aboard time before booking the morning departure.
Sail there
Luxury cruises that call at Karlskrona — book through us, the fare is identical and your concierge stays on your side.
More to do in Karlskrona
- Marinmuseum: Sweden's Premier Naval Museum & Historic Shipyard
- 6 Islands History Walking Tour: Karlskrona's UNESCO Archipelago on Foot
- Karlskrona Archipelago Kayak Expedition: Paddle the UNESCO Waters
- Life in Sweden: Cultural Walking & Tasting Tour of Karlskrona
- Stortorget & Baroque Karlskrona: Private World Heritage Walking Tour