Lake Peipus the town. Near Kallaste, there is one of the largest surfacings of Devonian sandstone with a length of and a maximum height of , as well as several caves and one of the largest colonies of swallows in Estonia. Lake Peipus Lake Peipus (; ; ) is the largest transboundary lake in Europe, lies on the border between Estonia and Russia. The lake is the fifth-largest in Europe after Lake Ladoga and Lake Onega (in Russia north of St. Petersburg), Lake Vänern (in Sweden), and Lake Saimaa (in Finland). Lake Peipus represents a remnant of a body of water which
Blidinje Lake surface area varies between 2,5 and 6 km², while its average depth is 1,9 m, with altitude of 1.184 m a.s.l. Blidinje Lake Blidinje Lake (), is alpine lake located in Blidinje Nature Park, on karstic Blidinje plateau, Bosnia and Herzegovina, between Jablanica, Tomislavgrad and Posušje, and is largest of its kind in the country. The lake is most important hydrogeological feature of the park and indeed entire Dinaric Alps karst within Bosnia and Hezegovina. It is located at an elevation of above sea level and is long and wide. Maximal depth of the lake is only , while average