This is 4.5 km-long cognitive ecological trail around the lake Juodlė. It marked 12 stops. Whether from one to another acquainted with the landscape, typical park forests, woodland key habitats, wetlands, rare species of plants, fungi and animals. The trail equipped with information stands, reviews towers. Juodlė lake leaving 10 thousand year around and between Šaukėnai Užventis dissolved glacier lagoon. To the Juodlė lake can rest - swimming, fishing. Juodlė lake study trail is about 4.5 km. Travel time about 2 hours. We suggest cycling or walking.