64.9730°N, 24.7300°E.
Hailuoto Jatulintarha is a prehistoric or medieval stone-formation labyrinth in Northern Ostrobothnia, Finland. The design is a classical baltic layout with 7 circuits, 8 walls, built of stone. Documented age: 15th-16th century (15th-16th century). Current condition: intact. A Jatulintarha ('Giant's Garden') stone labyrinth on Hailuoto — a flat, sandy island in the Gulf of Bothnia that is Finland's largest permanently inhabited island. Hailuoto's landscapes of sand dunes, meadows, and shallow bays support one of Finland's richest bird habitats. Documentation sources: Kraft 1983. Listed in the surveyed catalogue as one node in a larger global registry of the same single design. The labyrinth is one of several hundred sites of this type catalogued globally; each preserves the same unicursal walking-pattern with regional variation in scale, material, and date.
The labyrinth tradition spans at least 4,000 years of documented practice across northern Europe, the Mediterranean, the British Isles, North America, and the Indian subcontinent.