Lakes around Tranås, a municipality in Jönköping County, Sweden, are characterized by varied nature, including clear-water lakes, oak hills, and mountains. The area features numerous lakes, with Lake Sommen being a prominent natural landmark. These lakes offer diverse natural landscapes and opportunities for outdoor activities.
Last updated: May 18, 2026
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Brahehus was built by the imperial regent Per Brahe the Younger in the mid-17th century. The palace was originally intended as a pleasure palace. However, the plans were changed in 1645. The palace was intended to be a widow's residence for Per Brahe the Younger's wife, Kristine Katarina Stenbock. She died a few years later, however. The stately palace was instead used as a guesthouse. In 1708, the palace was destroyed in a fire and has since fallen into disrepair. Restoration work was carried out in the 20th century. Source: Display board
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On the left side of the floating dock are very tall reeds. Ducks often stay there. During my visit, I even saw a family of ducks with a total of eight young.
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A wild “small” climb to Brahehus through the forest, which is a little strenuous, but worth the effort
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Lake Vättern is Sweden's second largest lake after Vänern. The water is deep (except in the northern part), very clear and not particularly warm. There are some wonderful bathing spots on the lake, including Vättersvallen in Brevik (with a lovely campsite), Djäknasundet in Karlsborg and, last but not least, Varamo Baths in Motala, Northern Europe's longest inland lake beach.
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The Brahe House was built by the imperial regent Per Brahe in the middle of the 17th century. The castle was originally intended as a pleasure palace. In 1645 the plans were changed and it was now to be a widow's residence for Per Brahe's wife. However, she died before it was completed. In 1708 the castle was destroyed in a fire and has been dilapidated ever since.
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Both are beautifully situated on Lake Vättern
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A beautiful jetty with seating along the sides. A cute pair of ducks were taking a siesta here. A little further up is a fire pit with benches.
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Very nice vantage point on the Vättern and the wide country. In any case, it is worth the hardship of climbing up from Gränna. Brahehus is a castle ruin right on the European route E4. Like Gyllene Uttern a few kilometers further south, Brahehus also belongs to Gränna in Småland. Brahehus was once a noble but also quite ostentatious castle. Unfortunately, it only stood in all its glory for around 50 years. Source: https://schwedentipps.se/smaland/brahehus
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Lake Sommen is a major draw due to its exceptionally clear water, often with 8-10 meters visibility, making it ideal for swimming and paddling. It's known for its approximately 260 islands, including Torpön which features a restaurant, high ropes course, and nature center. The lake is also a prime spot for fishing, with 22 different fish species, and offers beautiful scenery for hiking along its shores.
Yes, several lakes offer family-friendly options. For instance, the Swimming Area at Hätte Camping, Lake Sommen provides a beach, playground, and diving tower. Lake Sommen itself is great for paddling and exploring its many islands. Additionally, the Gränna Camping and Ferry Terminal on Lake Vättern is a large campsite with beaches and views, and ferries to Visingsö island.
Tranås offers diverse fishing opportunities. Lake Sommen is excellent for anglers, boasting 22 fish species including pike and perch, with trolling often recommended. Säbysjön is known for zander, while Klanggölen is a managed 'put and take' waterbody specifically for fly fishing rainbow trout. Other lakes like Sötåsasjön, Valen, and Strånnasjön also offer good fishing for various species.
You can find various hiking trails near the lakes. The Illern Nature Reserve, located east of central Tranås, offers marked trails through the woods around Lake Illern. Lake Sommen also has trails like the Almåsberget trail, providing viewpoints over the lake. For more options, you can explore routes like the 'Around Lake Illern' or 'Lake Illern – Lakeside Jetty with Seating loop' found in the Hiking around Tranås guide.
Yes, the Brahehus Castle Ruins are a notable historical landmark. These 17th-century castle ruins offer scenic views of Lake Vättern and are located conveniently next to the E4 highway. The castle was originally intended as a pleasure palace and later a widow's residence before being destroyed by fire in 1708.
The lakes in Tranås are perfect for water activities. Lake Sommen is excellent for paddling, with marked canoe trails, and offers opportunities for renting boats. Its clear water makes it ideal for swimming, with designated bathing spots like Hättebaden. In winter, when the ice is thick enough, Lake Sommen becomes a popular spot for ice skating and ice fishing.
Yes, there are several cycling routes that explore the lake areas. You can find options like the 'Vättern-Sommen Trail Loop from Tranås' or the 'Illern Loop' which take you through varied landscapes. More detailed routes and information are available in the Cycling around Tranås guide.
Lake Vättern, Sweden's second-largest lake, is known for its deep, very clear, and generally cool water. It offers numerous beautiful bathing spots along its shores. The lake is also home to the Gränna Camping and Ferry Terminal, which provides ferry access to Visingsö island.
Absolutely. The Illern Nature Reserve provides marked trails through the woods, offering a chance to observe local flora and fauna. Säbysjön is specifically highlighted as a good spot for birdwatching. Lake Sommen, with its rich ecosystem and numerous islands, also offers diverse natural experiences.
During winter, when conditions allow, the lakes transform into venues for cold-weather activities. Lake Sommen becomes a popular spot for ice skating and ice fishing when the ice is thick enough. The Illern Nature Reserve also features an 8 km illuminated trail, making it suitable for cross-country skiing.
The Almåsberget trail along Lake Sommen offers excellent viewpoints over the lake. Additionally, the Brahehus Castle Ruins provide a historical setting with expansive views of Lake Vättern. You can also find scenic spots like the Lakeside Jetty with Seating, which offers a peaceful view.


Still not found your perfect lake around Tranås? Check out the guides of these regions to see even more beautiful places.