Easy nature trips: A mire excursion in Southern Finland – what to see in spring, summer, autumn and winter
The mires of Southern Finland offer an easy way to change scenery in an instant. Duckboards lead you into open mire landscapes, and birdwatching towers provide great viewpoints, especially during migration seasons.
Many areas have short, clearly marked circular routes for day trips. Choose a season that suits you and a route that feels right. At Torronsuo, for example, you walk on duckboards above the deepest mire in Finland.
Mire trips in a nutshell
Suitable for:
- day trips and families: often short, clear 2–7 km circular routes
- birdwatching: at its best during spring and autumn migration
- accessible nature experiences: bird towers and accessible structures at many destinations
- different seasons: atmosphere, sounds and species change throughout the year
Get started: 3 easy options
These are reliable starting points:
1. Torronsuo (Tammela, Kanta-Häme) – duckboards, bird migration and cross-country ski tracks in good snow winters.
2. Valkmusa (Kotka, Kymenlaakso) – an exceptionally representative and diverse mire area offering sensory experiences year-round.
3. Nuuksio / Soidinkierros (Uusimaa) – an easy 4 km route with a highlight view over the mire from a rocky rest area.
Many mires are important nesting areas, and wildlife is sensitive to disturbance, especially during nesting. Stay on marked trails and duckboards and follow site-specific restrictions and guidelines. This helps ensure nesting peace. Restrictions begin in spring and may last well into summer, sometimes until mid-July. Restricted areas are marked on the map.
The charm of mires
Mire landscapes are often open, and sounds carry far: wind, the calls of cranes and the sound of flowing spring water. Mire types range from barren raised bogs to richer fens, and even along the same duckboards you can experience completely different worlds depending on the season.
The mire through the seasons – when to go?
Spring on the mire: migration, courtship and returning light
Spring is the season of birds and sounds, and hiking becomes easier as daylight increases.
- Easy spring choice: Torronsuo National Park has several marked trails (approx. 1.5–10 km) in flat terrain. From the Kiljamo bird tower and accessible viewing platform, you can observe spring and autumn migration. The area is an important stopover for cranes.
- Kurjenrahka National Park: mire nature is the highlight here. The presence of cranes is unmistakable, and in spring evenings you may also hear owls such as the Ural owl (Strix uralensis).
- Valkmusa National Park: spring is the liveliest time, when thousands of migrating birds fill the air. The osprey (Pandion haliaetus) is a visible part of the breeding bird population and can often be spotted from the Valkmusa bird tower along the Läntisen keitaan lenkki trail (the Western Oasis Trail).
- Kauhaneva-Pohjankangas National Park: the vast mires come alive in spring. From the bird tower, you can observe cranes, whooper swans (Cygnus cygnus) and waders. The demanding accessible trail at Kauhalammi leads into the heart of the raised bog.
Mires can be wet and duckboards slippery. Choose boardwalk routes, allow time for birdwatching and bring binoculars.
Summer on the mire: flowers, insects and peace
In summer, life is everywhere: scents, sounds and the calm of open landscapes.
- Easy summer choice: Nuuksio National Park. Soidinkierros trail (4 km) in Nuuksio National Park – an easy, even-paced route with beautiful mire views.
- Seitseminen National Park: the Saari-Soljanen nature trail leads to a natural mire with cottongrass (Eriophorum vaginatum) and blooming Labrador tea (Rhododendron tomentosum). Easy duckboard trail with viewing platforms, suitable for families.
- Valkmusa National Park: home to rare mire butterflies, such as the purple-bordered gold (Idaea muricata) active from Midsummer for about a month.
Protect your skin from insects. In hot weather, mires can feel very exposed due to lack of shade.
Autumn on the mire: berries and colours
Autumn colours are often the highlight: sphagnum mosses, dwarf shrubs and cranberries glow.
- Easy autumn choice: Kurjenrahka National Park offers flexible route combinations and a peaceful atmosphere.
- Torronsuo National Park: autumn migration is clearly visible and audible. Bird towers and platforms make observation easy.
- Valkmusa and Torronsuo: autumn colours shine and cranberries are ready to pick.
Darkness falls quickly – bring a headlamp.
Winter on the mire: when the ground is frozen
In winter, movement is often easier as wet areas freeze.
- Torronsuo National Park: cross-country ski tracks in snowy winters.
- Kurjenrahka National Park: ski tracks lead into the peaceful mire landscape when conditions allow.
- Valkmusa National Park: suitable for off-track skiing, and sometimes maintained tracks are available.
- Always check current conditions before your trip.
Tips for a successful mire trip
- Stay on duckboards and marked trails – this protects fragile mire nature and improves safety.
- Time your visit: during migration seasons, towers and parking areas can be busy. Weekdays are often quieter.