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Koivistonkierros

—•Hiking Trails

4.6 km

Route

P 1

Description

Jämi – Koivistonkierros+

Description

Koivistonkierros is an easy 4.6 km loop through Hämeenkangas ridge-and-depression terrain at Niiniharju, west of the Jämi outdoor area in Jämijärvi, Satakunta. The loop stats on Jämi—length, type, 31 m of ascent and descent, and WGS84 start coordinates—are provided with Metsähallitus named as the service supplier there. Outdoors Satakunta’s longer listing describes lichen-and-pine ridge forest, the Koivistonvati sinkhole as about 200 m wide and 25 m deep, Niiniharjun metsälehmuslehto, marking symbols, and the fact that Hämeenkangas also serves as a Finnish Defence Forces training range where temporary access limits can apply. Askeleita Suomessa’s Hämeenkangas notes how Harjuluontopolku and this loop combine into roughly a nine-kilometre day if you want more distance on linked paths. Near Jämin laskettelurinne, park at Niiniharju P-Alue or follow the access description from the slope parking toward Niiniharju Niinikota—the open-air starting shelter there is accessible, while the narrow forest path beyond is not suited to strollers or bikes. Jämi-Jukolan laavu and Lehtolaavu lie close enough to visit before or after if you are already walking Niiniharjun esteetön reitti or Harjuluontopolku from the Jämi centre roads. About two kilometres along the recommended counter-clockwise direction you reach the Koivistonvati rest cluster: Leirikoululaavu, the lean-to at Koivistonharjun laavu, Koivistonvati keittokatos, Koivistonharju kaivo for water, and Koivistonvadin P-alue if you approached by forest roads. This is the best place to pause above the large suppa formed in the last glacial age. Dry toilets are available at the main rest points without needing to detour for named units. The return leg runs along the north side of Niiniharju in easier ground; Niiniharju laavu offers a final fireplace stop before you close the ring near the ski-hill side. Small birds typical of open ridge woods—Outdoors Satakunta mentions kangaskiuru and kehrääjä—reward quiet walkers in summer. From this loop you can branch to Harjuluontopolku, Niiniharjun esteetön reitti, Pirkanura Kesäretkeilyreitti, or the lit ski and fitness tracks around Jämi when you want a longer network day; carry a proper map because ski corridors and snowmobile routes cross the same forest.

Length & route

The trail is about 4.6 km as one continuous loop with roughly 31 m of climbing and 31 m of descent on forest and sandy path. Outdoors Satakunta rounds the distance to about 4.5 km in its listing and suggests planning 2–3 hours including breaks. One steep climb early in the loop stands out; the rest is mostly moderate ridge walking that can feel slick when wet.

Getting there

The signed start is at Niiniharju Niinikota beside the old downhill area—Outdoors Satakunta gives coordinates N61° 46.233′ E22° 45.036′ and directs drivers to park at Jämin laskettelurinne, then follow the sand track past Niinimaja toward the kota signage. Rinnetie 163, 38800 Jämijärvi matches the address block published on Jämi. If you are already at Jämikeskus on Sormelantie 77, blog visitors report driving the couple of kilometres to the Niinikota trailhead to save time. Public transport does not reach the trailhead directly.

Good to know

Hämeenkangas is partly a Defence Forces training area—check current local notices before you go. Outdoors Satakunta notes overnight use is possible at the Koivistonvati shelters or tent pitch and at Leirikoululaavu if you plan a slow traverse; confirm firewood and hut rules on site signage or via Jämikeskus (+358 40 573 6120). Dedicated YouTube searches did not surface a high-confidence trail-overview video for this exact loop; rely on Jämi and regional maps for visuals.

Managed by

Jämijärvi

Official Maintenance

040 769 9181

GPX data from: © Metsähallitus, 2024

Trail info

Counter-clockwise is the recommended walking direction; junction signs reinforce the loop.

Route direction

Recreation Area

blue

Route Signs

Open / Good Condition

Activities allowed

Hike / Walk

Activity

Terrain & conditions

4.6 km

Distance

2–3 hours including breaks (Outdoors Satakunta)

Est. Time

Narrow forest path with sand or gravel sections; steep in one early climb; slippery when wet

Surface

Loop, Single Track

Route Type

Light Traffic

Traffic

Partial Shade

Shade

Outdoors Satakunta – Koivistonkierros

Location

61.77160°N, 22.74738°E

Parking coordinates

FinlandCountry

SatakuntaRegion

JämijärviCity

Hiking TrailsCategory

Explore nearby

Jämin kuntoladut

251 m

Free

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Answers to your questions

Our data was researched from Jämijärvi, 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 Satakunta Jämijärvi Hiking TrailsKoivistonkierros