The Imula is one of the Abava’s tributaries – winding and sometimes with steep banks. The trail winds along the right bank of the picturesque Imula River through a deciduous forest with ash, hazel and maple trees, which also has large spruce trees. It starts at the mouth of the Imul River Abava, and at the beginning from the top of the Langsede rocks you can see the magnificent landscape of the valley. On the way you can see another natural monument – the Devil’s Foot Stone, lying in the middle of the Imula. The trail is about 5 km long and leads up to the Busse Castle Mound.