A municipality larger than its historic name

Korsholm, called Mustasaari in Finnish, is a broad coastal municipality beside Vaasa in Ostrobothnia. It includes the mainland centre of Smedsby, farming villages, industrial areas and a long chain of islands facing the Kvarken Strait. The name can send visitors straight to the medieval castle site, but the present municipality is much wider: it was formed in 1973 by the merger of five municipalities, including Replot, Björköby, Solf and Kvevlax. Statistics Finland counted 19,792 residents in the whole municipality on 31 December 2025. A separate municipal snapshot for 2024 recorded Swedish as the mother tongue of 69% and Finnish for 29% of residents, so Korsholm is officially bilingual; this guide uses Swedish as the local-language version while retaining both place names.

What the medieval record says—and what it does not

The parish appears in a royal letter in 1348, the first written mention cited by the municipality. That is a documented reference, not a claim that the settlement began that year. A defensive castle was built in the 1370s on the site now called Old Vaasa, and the crown established a royal estate there in the 1550s. In 1606, the parish village received city status and the name Vaasa. Much of the city burned in 1852; the rebuilt city centre was moved, leaving Old Vaasa with the castle ramparts and the ruins of the 14th-century Church of St Mary. The former Court of Appeal building survived the fire and has served as Korsholm Church since 1863. These layers make the municipality a useful place to read how a regional centre changed, rather than a single preserved old town.

Replot, Svedjehamn and a coastline still changing

For many travellers, the defining route leads from the mainland over Replot Bridge. At 1,045 metres, it is Finland's longest road bridge; it opened in 1997 and connected the island communities more directly with Vaasa and the rest of Korsholm. The municipality's Replot business centre developed after the bridge opened, illustrating how infrastructure affects work as well as sightseeing. Beyond the bridge, roads continue through Replot towards Björköby and Svedjehamn. The archipelago belongs to the Kvarken natural World Heritage area, whose landforms record the retreat of the Ice Age and the continuing rise of the land. Here that process is legible in the long, low De Geer moraines and in shorelines that keep shifting outward.

Svedjehamn is a working landscape as well as a visitor stop: red boathouses, harbours and routes give a sense of fishing life in the outer archipelago. From the harbour, the municipal Saltkaret tower rises about 20 metres and stands roughly 800 metres away along marked trails. Its view takes in the ridged moraine pattern. The Bodvattnet and Björkö–Panike trails provide longer walks, while Bodback preserves the character of an old fishing harbour. Replot's church and harbour, the Björkö Boat Museum, Granösund's fishing hamlet and local farm museums widen the picture beyond the bridge. Boat excursions to more distant islands depend on operators and season, so check availability rather than assuming a regular departure.

Stundars and the working countryside

In Solf, Stundars offers a different scale of history. Its open-air museum brings together 66 buildings and interprets Swedish-speaking Ostrobothnian rural life, especially from 1870 to 1920, with attention to farmers, craftspeople and working households. Blacksmithing, weaving, tin work and building preservation are part of the museum's programme; a Christmas market and craft events connect those skills to present-day makers. The museum is not simply a row of picturesque houses: the collection grew from local heritage work begun in 1938 and now serves as a cultural centre. The buildings and exhibitions open seasonally or by arrangement, so consult Stundars before travelling outside its main summer period.

Korsholm's economy reflects its position beside Vaasa and across land and sea. The municipal profile describes a combination of services, industrial sites, agricultural fields and archipelago businesses. The Replot business centre is one example of employment on the island, while municipal harbours serve both professional fishing and leisure boats. Visitor services are spread out: restaurants, groceries and seasonal kiosks appear along the routes, not in one central square. In 2026 the municipality announced a summer kiosk at Fjärdskär rest area beside the bridge; the notice listed a seasonal schedule, a reminder that food and other services here can change with the time of year.

How to plan a visit from Vaasa

Vaasa is the natural starting point. By road, travel through Smedsby and follow the route to Replot Bridge, then continue towards Björköby and Svedjehamn. The municipality's cycling itinerary links Smedsby, Old Vaasa, Solf, Replot and Svedjehamn over several days; it puts Smedsby to Old Vaasa at 7 kilometres and maps further legs through the villages. The route mixes paved and gravel roads, so check the current surface and weather before setting out. Vaasa also ran a World Heritage Bus in summer 2026 from the city centre to the visitor gateway by Replot Bridge and onward to Svedjehamn three days a week. Those dates have passed; check the city's next seasonal timetable. The standard Vaasa-region bus network serves local commuter routes, but connections to island attractions and return times need to be checked for the day of travel. Allow time for the distances between sites, and confirm museum, restaurant and boat-trip opening arrangements.

Useful visitor links