This bog is one of the largest bogs in Kõrvemaa: about 1,000 hectares. The picturesque high bog with many bog pools is made unique thanks to the fact that the bog is located at two different heights. In spring and autumn, thousands of waterfowl stop in the bog pools. Lake Kakerdaja lies in the middle of the bog. The 2.6 ha Hiiesaare marsh island with a species-rich stand, which was probably an ancient place of shelter and sacrifice, is located three-quarters of a kilometre east of Lake Kakerdaja. 4 kilometres of the nature trail is covered with a boardwalk. In 2020, reflectors were installed on the Kalajärve part of Kakerdaja trail (3.4 km). We recommend bringing a flashlight.