Sobotka, in the southwest of Český ráj is more isolated and there is little to see here, although the oval-shaped hunting lodge, known as zámek Humprecht, on the northern edge of the town is worth a quick look. The real attraction here is the castle at Kost, three kilometers north of Sobotka, in the village of Podkost. The robust castle, perched on an equally robust outcrop that looks like a very overweight version of a rock city column, preserves its medieval features. A sparse bus service runs to Podkost from Sobotka, but the distance is walkable.