Harimägi is one of the largest mesas in the Otepää Uplands (211 m above sea level). It is worth coming to Harimäe whenever you are near Otepää.The Harimäe Observation Tower is located 3 km from Kääriku in the direction of Sangaste. The height of the tower is 28 m, and the highest viewing platform is 24 m high. The tower offers views of the Otepää mountains and across the Väike Emajõgi valley to the Karula upland.Camping is also allowed at the tower.Good to know: Harimägi is also called 'Leenard and Leonhard's hill.' From 1816 to 1819, geodetic surveys were carried out here by the internationally recognised astronomer and surveyor Friedrich Georg Wilhelm Struwe (1793–1864).