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A very large maritime museum on the waterfront with spectacular vistas. Most of the exhibits are in Swedish, so be sure to pick up an audio guide. The exhibits consist principally of a very large and impressive collection of wooden ship models, and life-size interiors of ships that can be walked through. In addition to the museum itself, the complex houses a very popular smorgasbord that you'll find packed with Swedes from around 11:30 onwards, and a gift shop. Outside the museum you'll also find some disused ships/submarines that are worth a look, and Karlskrona's famous lighthouse.

No visit to Sweden would be complete without getting up close and personal with some cute little red wood houses and Dragsö does not disappoint when it comes to providing one of the best examples. The island has a gorgeous little cluster of red wood summer homes at Brändaholm. In addition to this, Dragsö has some lovely beaches; great for swimming in the summer and for quiet, isolated walks in the winter. Dragsö also hosts a large camp site, which includes all the usual amenities and a fun little mini golf course. Dragsö is a fair way out of Trossö, so consider taking a bus, putting on some good walking shoes or hiring a bike.

Built on Karlskrona's main square by prisoners of war as a punishment, the Trefaldighetskyrkan is a cute yellow church with a spectacular interior dome - like a wooden version of Rome's pantheon.

A temporary church built in 1681, it remains as a striking red wooden building down a lane surrounded by the naval reserve. In front is a statue of Rosenbom, a vagrant who froze to death. Lift his hat and insert a coin to assuage yourself of guilt about ignoring homeless people.

In parkland south of the main square is this yellow clock tower. Several of the defunct railway tunnels can be viewed from nearby.