In the North part of Tuchola Forests, some 45 km North of Chojnice, lies the „Kamienne Kręgi” (Stone Circle) nature reserve. The thin fir woods hide some 10 intact stone circles and the remains of two ones. The smallest has a diameter of 15 m, the biggest -33 m. They are formed by boulders of differing sizes - from 16 to 29 a piece each. The centre is usually marked by one, rarely by two boulders. The reserve boasts of 30 burial mounds. This magical area covers 17 ha and, in the 1st century, served as the burial ground of the Goths.