A loop through the old limestone-burning and farm landscape of Sipoonkorpi, with a lean-to shelter and campfire site at Kalkkiruukki. Free entry; the park has more than 26 km of marked trails.
The Kalkinpolttaja Nature Trail is a circular route in Sipoonkorpi National Park, starting from the Kalkkiruukki area on Uunimäentie in Sotunki, Vantaa, in southern Finland. The loop is about 4.8 km, although some sources list 4.8 to 6 km depending on the variant, and it takes roughly 2.5 to 3 hours. The trail winds through the old limestone-burning and farm landscape of the area, and Kalkkiruukki has a lean-to shelter and campfire site. Entry to the park is free, and Sipoonkorpi has more than 26 km of marked trails in total.
Access is by public transport. Visitors should plan an HSL bus from Helsinki or Tikkurila to Sotunki in Hakunila, Vantaa, and then walk to the Kalkkiruukki area on Uunimäentie, using reittiopas.hsl.fi for current routes. Another approach is the Källängen entrance, reached by a bus from Rautatientori to the Jokivarrentie stop, followed by a walk of about 1.5 km.
The terrain combines forest and field, with some steep and muddy sections, so the surface can be slippery after rain. The difficulty is rated easy by distance and total ascent, but waterproof hiking shoes make a noticeable difference. Forest cover provides shade in summer, while open field stretches are more exposed. There is no drinking water on the trail, so visitors need to carry their own supply. The shelter and fireplace at Kalkkiruukki are a natural place to pause, and fires should be made only at the designated site.
In summer, insect repellent and a tick check afterwards are advisable in this woodland setting. Because the route is a loop, the turn-around option is simply to return to Kalkkiruukki by whichever direction is shorter. An offline map is recommended since signage may not cover every junction among the park's wider trail network. National park information is available from Metsähallitus on Luontoon.fi.
| Distance | 4.8 km circular trail (sources list 4.8-6 km depending on the variant) |
|---|---|
| Duration | About 2.5-3 hours |
| Difficulty | easy |
| Best season | May to October; the old limestone kiln area is atmospheric in autumn |
| Address | Kalkkiruukki, Uunimäentie, Sotunki, Vantaa |
Trail facts
- Trail area
- Sotunki, Vantaa (Sipoonkorpi National Park)
What to bring
- Waterproof hiking shoes
- Water (no drinking water on the trail)
- Insect repellent and tick check in summer
- Offline map
Location
Kalkkiruukki, Uunimäentie, Sotunki, Vantaa
60.2963, 25.1578 View on map
Highlights
- Circular trail through the former limestone-burning and farm landscape
- Lean-to shelter and campfire site at Kalkkiruukki
- Part of Sipoonkorpi's network of more than 26 km of marked trails
- Free entry and bus access from Helsinki and Tikkurila
Tips for visiting
- Wear waterproof hiking shoes; some sections are steep and muddy.
- Carry water, since there is no drinking water on the trail.
- Use insect repellent in summer and check for ticks afterwards.
- Make fires only at the designated Kalkkiruukki site.
- Download an offline map before setting out; trail length varies by variant.
When to visit
May to October; the old limestone kiln area is atmospheric in autumn. Summer visits call for insect repellent.
Accessibility
The trail includes steep, muddy forest and field sections, so it is not suitable for wheelchairs or strollers.
Visit, book or contact
Frequently asked questions
How long is the Kalkinpolttaja Nature Trail?
The loop is about 4.8 km, though sources list 4.8 to 6 km depending on the variant. It takes about 2.5 to 3 hours.
How do visitors get to the trailhead?
Plan an HSL bus from Helsinki or Tikkurila to Sotunki in Hakunila, Vantaa, then walk to Kalkkiruukki on Uunimäentie. Check reittiopas.hsl.fi.
Is there drinking water on the trail?
No, visitors need to bring their own water.
Is there a fee to enter Sipoonkorpi National Park?
No, entry is free.