Sweden's proudest sailing fleet was created at the Gamla Örlogsvarvet. The old shipyard area forms part of the Karlskrona World Heritage Site, which is on the UNESCO World Heritage List. Here you will find, among relatively modern buildings, a variety of buildings and technology covering more than 300 years of shipbuilding. The most eye-catching buildings on Lindholmen are the Wasaskjulet, Polhemsdockan, and Repslagarbanan—Sweden's longest wooden building dating from 1692. There is also a tour that takes you to Lindholmen by sea. This shows you Karlskrona from the seaside and takes you out to the former naval yard. You can only visit Lindholmen with a guided tour. During the summer there are regular tours, contact the tourist office to arrange tours at other times.

Whether you're seeking tranquil moments surrounded by nature's wonders or gearing up for an active adventure like running, cycling, or paddling, Karlskrona offers a plethora of choices. With 25 captivating nature reserves, each showcasing diverse habitats—ranging from archipelago landscapes to mixed forests—Karlskrona's surroundings are a nature lover's dream. Scenic gems like Knösö, Sturkö, Torhamn's udde, and Södra Flymen invite exploration. Embark on a journey through the heart of nature with ARK56, an extensive network of trails weaving through the enchanting Blekinge archipelago. Whether on foot, kayak, bike, or boat, ARK56 promises a fusion of nature and culture. The network features 13 hubs strategically placed along the trails, such as Hasslö (Garpahamnen), Aspö (Lökanabben), Sturkö (Bredavik), and more, providing not just trails but a holistic experience with amenities, accommodation, and unforgettable moments.