while Ainsaar turns into a peninsula during low water, and Heinassaar is flooded in high water periods. The shores of Võrtsjarv are mostly low: swampy in the southern part, and sandy in the northern part; the eastern shore is higher. Despite its large surface area, the lake is shallow. The deepest place lies between the eastern shore and the island of Tondisaar along the submerged elongation of the riverbed of the Väike Emajõgi River. The lake depression is of preglacial origin but has somewhat been influenced by glaciers. On the eastern shore the Devonian sandstone bedrock is denuded along a stretch of several kilometres. This abrasion shore at Tamme is 3 - 8 m high and subjected to protection as a famous finding-place of fossil placoderm fishes. In the southern part the lake bottom is covered with a mud layer up to 5.5 m thick, which is gradually being replaced by sandy mud and
Danish conquest. Over the course of time Taanilinn was shortened to Tallinn. Today Tallinn is the largest city in Estonia, with a population of about 400 000. most of its people are engaged in industry. Tallinn boasts a wonderful medieval Old Town. Tallinn is a mixture of the modern and the medieval, where tradition goes hand in hans with the most recent trends. SOUTH ESTONIA South Estonia is a land of rolling hills and hillocks, preglacial valleys, beautiful lakes and rivers, architectual monuments and sites of historical importance. It is a wonderful place for spending a holiday and enjoying nature. It consists 6 counties Tartumaa, Jõgevamaa, Põlvamaa, Viljandimaa, Valgamaa and Võrumaa. Tartumaa lies between Lake Peipsi and Lake Võrtsjärv and is divided by the Emajõgi. Jõgevamaa is covered with drumlings running northwest to southeast through the whole country. The soil is fertile and the drumlins are
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