Location: N59° 26` 34.9", E27° 16` 30.6"
Ontika cliff is the highest limestone cliff in Estonia. Approximately 55 metres high, the cliff is like a stone book of natural history, opening to the viewer its layers of various eras. These rocks have formed 570 – 470 million years ago. The Ontika cliff is the highest section of the over-1,100 km-long Baltic limestone bank that starts on Sweden's Island of Öland and ends in Russia near Lake Ladoga. The steep cliff runs 23 kilometres. The best place to view the cliff is a nearby observation platform close to the Valaste waterfall, which is the highest in Estonia (25 metres) or from the hiking trail.
Ontika cliff is the national symbol of Estonia. In 1998, the site was added to the list of UNESCO World Heritage sites.