Tiirismaa tour – 4,9 km
Last updated: 08.07.2024Let's go to the forest
The nature site is quite special, and in addition, in rainy weather, you can experience a very unique phenomenon here: you can hear the gurgling of an underground stream as the drops fall from the spruce branches down onto the peat bogs.
Marinella Himari, Kaikokaipuu blogger
The diverse nature of Tiirismaa is of national value. The forest trails follow the contours of the terrain and when you reach the highest point, you are 223 meters above sea level. The views vary and nature shows its best sides along the way. You will feel comfortable and well in the forest.
The Tiirismaa tour is a hiking trail of just under 5 km long, which runs through very varied terrain and there are many interesting natural sites along the way. In the west, you can admire Lake Iso Tiilijärvi from a viewpoint named Tilkki's peek. When returning to the trail from the viewpoint, you enter the forest and as you climb the hill, after rain, you can hear the babbling of an underground stream beneath your feet. At the highest point of the trail, you can fry sausages at the Marta maja lean-to, and in the northeast, you can admire the Pirunpesä rock crevice. The difference in elevation along the trail is about 70 meters. There is climbing and it is worth it.

Tiirismaa is a great geological site. Part of the peak of Tiirismaa has never been under water, the approximately 120,000-year-old rock crevice Pirunpesä has been a tourist destination since the 19th century, and the terrain is full of quartzite, Finland's strongest rock type.
- 4,5 km
- Moderate route
- Red-orange paint marks
- Campfire site
- Geology
- Antiquities
- Gateway to Nature
- Salpauselkä Geopark
Origin
Arrival instructions
The route can be reached on foot, by bike, by car and by public transport.
- Park in the marked area
- Access to private areas is prohibited
- Keep animals on a leash
- Respect nature and those who walk there
- Making fire in the area is prohibited
- In an emergency, call 112
- Enjoy nature and its purity
Salpausselkä Geopark destination
The Devil's Den in Hollola is a gorge cutting through the quartzite bedrock of Tiirismaa, with vertical walls up to 20 meters high. This impressive natural formation has been a well-known attraction since the 19th century. The Tiirismaa rock area has been declared to be of nationally high value, and it is one of the most significant sites in the Salpausselkä Geopark. The rock fissure was created in one of the weak zones of the Tiirismaa bedrock, where the rock material has cracked and broken over time. At the end of the ice age, about 12,000 years ago, the southern edge of the continental glacier blocked a glacial lake formed from the meltwater of the glacier to the north of the Tiirismaa rocks.

The Devil's Nest and Marta's House
Martan Maja lean-to is located in Tiirismaa, at an altitude of 220 meters, surrounded by the valuable nature of Pirunpesä. Pirunpesä in Hollola is a gorge cutting through the quartzite bedrock of Tiirismaa, with vertical walls up to 20 meters high.
When descending back into the forest, on a rainy day you can hear the murmur of an underground stream. On the other hand, at an altitude of 220 meters above sea level, you can fry sausages in Marta's hut. The Pirunpesä rock crack with its pond also happens to be along the route.
The climb to Tiirismaa was my favorite landscape. Green fairy forest. Small lean-to, fire pit and table and benches. I sat under the roof of the lean-to with coffee and snacks. A very nice place. Despite the gray weather, I enjoyed myself for a good while at the lean-to.
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Devil's nest
Pirunpesä in Hollola is a gorge cutting through the quartzite bedrock of Tiirismaa, with vertical walls up to 20 meters high.
Memories of Tiirismäki
Tiirismäki in Tiirismaa is an area of ancient ruins, where people once lived in the Tiirismäki house. Ancient ruins are memories of the past, traces left by the activities of people who lived in the past. Ancient ruins are protected by law and may not be broken, moved or damaged in any way. There are almost 300 ancient ruins in Hollola.