The name 'Helvetinjärvi' translates directly to 'Hell's Lake' in Finnish.
The Helvetinkolu gorge is a narrow, vertical cliff fissure that reaches depths of nearly 40 meters.
The park's trails are part of the larger Pirkan Taival hiking network which covers hundreds of kilometers in the region.
The sandy beach at Haukanhieta is a rare geological feature formed by ancient esker deposits.
The park hosts old-growth forest areas that have remained largely undisturbed by commercial forestry for over a century.
The park provides habitat for the rare and protected Siberian flying squirrel, which is a species of European Union interest.
The geological formation of the park is defined by the Tampere Schist Belt, dating back approximately 1.9 billion years.
Helvetinjärvi National Park is characterized by its dramatic geological formations, most notably the Helvetinkolu gorge. The park's landscape was shaped by tectonic shifts that created deep fault-line lakes and steep, rugged cliffs. It features a network of marked trails spanning approximately 40 kilometers. The terrain includes diverse forest types, ranging from old-growth spruce forests to pine-dominated ridges. The park is situated within the Pirkanmaa region near the municipality of Ruovesi. Several lakes, including Helvetinjärvi and Haukanhieta, provide the primary water features within the park boundaries. The park serves as a protected area for wildlife such as Siberian flying squirrels and various bird species. Facilities include maintained campfire sites, rental huts, and designated wilderness camping zones. The park is accessible via several trailheads that lead directly into the protected forest interior.
The view looking down from the observation platform at the Helvetinkolu gorge.
Wear sturdy, waterproof hiking boots to navigate the uneven, rocky terrain in the gorge areas.
Carry a physical map or GPS device, as mobile signal can be inconsistent in deep forest valleys.
Bring your own drinking water, as natural sources should be filtered or boiled before consumption.
Attempting to traverse the steep gorge walls during rainfall, as rocks become extremely slippery.
Open year-round, but specific trails may be difficult to navigate in deep winter snow without snowshoes.
Practice Leave No Trace principles; keep dogs on a leash at all times; use only designated campfire spots.
