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Kerttula Nature Trail

—•Hiking Trails

3 km

Route

Description

City of Raisio – Nature trails and paths+

Description

Kerttula Nature Trail is a roughly 3 km marked hike in Raisio, Southwest Finland, between Kerttula sports area and Friisilä. For closures, temporary detours, and PDF maps, start with the City of Raisio’s nature trails listing. The route is marked with yellow paint and is usually walked counter-clockwise; the city notes the line can shift when new housing is built, so treat published maps as provisional. Independent walkers describe a medium-difficulty mix of spruce–pine forest, rocky outcrops, short duckboard crossings, and meadow edges, with the climb to Kuuanvuori as the scenic heart of the outing. Kuuanvuori rises about 52 m above the surroundings. From the top you look across Raisio’s industrial rooftops, Meyer Turku’s cranes, and familiar landmarks; rock faces still show ancient shoreline traces from post-glacial uplift. A Crimean War–era optical telegraph station stood here in the 1850s; see history for context. Pikku-Kuuanvuori adds another rocky viewpoint before the trail drops back into mixed woodland where flying squirrels are sometimes reported. Near the sports cluster you pass Kerttulan kuntoportaat, Kerttulan ulkokuntosali, Kuntokeidas, Kerttulan DiscGolfPark, Raision jäähalli 1, Raision jäähalli 2, and Kerttulan urheilukenttä Kerttula—handy if you want to combine a short forest loop with exercise facilities. From the same base, Kullaanpolku continues north as a longer day hike on the Kuhankuono hiking network toward Kullanvuoren näkötorni, Kullaanvuoren laavu, and Rusko ski centre. In winter, Kerttulan hiihtolatu shares the neighbourhood; Jokiraitti and RaisionRaitti offer additional walking links from Kerttula toward the river and town centre. Retkipaikka’s autumn walk report gives a vivid on-the-ground feel for Kuuanvuori and the yellow-marked tread. Kaija Virtanen’s blog Rinkan kannosta ja muustakin describes the same trail in winter and highlights the many nature-education panels along the route. Raisio sits in Southwest Finland’s coastal belt. The trail is a practical city-edge outing when you want rock, forest, and a bit of local history in one short walk.

Length & route

The trail is about 3 km as one walking line. The City of Raisio also quotes about 3.3 km in trail descriptions; small differences usually come from rounding or slightly different start–finish points. Expect forest foot tread, rocky climbs on Kuuanvuori and Pikku-Kuuanvuori, short duckboard lines over wet ground, and brief urban edges where yellow marks can be harder to follow. Allow roughly one to one-and-a-half hours on foot.

Getting there

The City of Raisio lists two practical starts: Kerttula Sports Centre (Kerttulan liikuntakeskus) on Kisakatu and the Friisilä workshops area. Kullaanpolku day hikers using the same south trailhead park at Kerttula; coordinates published for that parking are near Kisakatu 3, Raisio. Buses serve central Raisio and Kerttula school stops; walking from Kauppakeskus Mylly is roughly one kilometre to trail access on some itineraries. If you only want Kuuanvuori without the full loop, Retkipaikka notes a few informal roadside spaces on Katvekatu on the west side of the hill.

Good to know

Some wayfinding and information boards along the route have been reported as worn; check the City of Raisio PDF map for the latest layout. Berry and mushroom picking is possible in season when everyman’s rights apply and landowner rules are respected. After wet weather, short sections can be muddy on connecting links toward other Raisio loops.

History

During the Crimean War, the Russian Empire built an optical telegraph chain along Finland’s south coast; a Raisio station stood on Kuuanvuori in 1854–1855 as part of the Hanko–Turku line continuing toward Uusikaupunki via Raisio and Nousiainen. The original plan to extend the chain farther north stalled when wartime funds ran out. Midsummer bonfires were lit on the hill long afterward; a wooden lookout tower on the summit was later removed for safety. Kuuanvuori’s rock still records multiple prehistoric shoreline levels from post-glacial land uplift.

Managed by

Raisio

Official Maintenance

Trail info

Walk counter-clockwise following the yellow markings when completing the circuit from Kerttula or Friisilä.

Route direction

Recreation Area

Yellow paint spots along the tread.

Route Signs

Open / Good Condition

City of Raisio – Nature trails and paths+

Activities allowed

Hike / Walk

Activity

Run

Activity

Terrain & conditions

3 km

Distance

About 1–1.5 hours on foot for the full line.

Est. Time

Mixed forest soil and rock; short duckboard sections; brief paved or gravel edges near sports facilities.

Surface

Point-to-Point, Single Track

Route Type

Partial Shade

Shade

Moderate Traffic

Traffic

Rinkan kannosta ja muustakin – Kaija Virtanen

Location

60.49286°N, 22.14334°E

Approximate location

FinlandCountry

Southwest FinlandRegion

RaisioCity

Hiking TrailsCategory

Explore nearby

Kerttulan liikuntahallin kuntosali

264 m

Raision jäähalli 2

142 m

Kerttulan liikuntahalli

268 m

Kerttulan DiscGolfPark

170 m

Free

Kerttulan liikuntahallin telinevoimistelusali

247 m

Kerttulan jalkapallonurmikenttä

248 m

Kerttulan tenniskeskus oy

300 m

Kerttulan tenniskentät 3

311 m

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Answers to your questions

Our data was researched from Raisio, and other trusted sources, in March 2026. Our route / place GPX data comes from Metsähallitus / Lipas, last updated March 2026. Always check their official website for safety-critical updates.

Finland Southwest Finland Raisio Hiking TrailsKerttula Nature Trail