On the outskirts of the village Krępkowice lies a Teutonic Knights' boundary stone, and nearby stands a mighty pedunculate oak known as Świętopełkowy. Its age is estimated to be around 650 years, although some historians are inclined to attribute even 1100 years to it. One thing is certain – it is the oldest oak in Kashubia. Despite its relatively small circumference, about 8 meters, it stands out with very thin growth rings due to growing on dry, barren, and sandy soil. Measuring about 20 meters, the oak looks magnificent especially in late spring and summer when its crown is entirely covered with an intense and dense layer of leaves. A marked educational and nature trail leads to this oak and to the nearby Brody Lake.