Kymi basin

Päijänne () is the second largest lake in Finland (). The lake drains into the Gulf of Finland via the Kymi River. The major islands are from north to south Vuoritsalo, Muuratsalo, Onkisalo, Judinsalo, Edessalo, Taivassalo, Haukkasalo, Vehkasalo, Mustassalo, Virmailansaari and Salonsaari. The largest island is Virmailansaari. The word saari means an island. Salo once meant a great island, nowadays it means a great forest area.

Kymijoki () is a river in Finland. It begins at Lake Päijänne, flows through the provinces of Päijänne Tavastia, Uusimaa and Kymenlaakso, and discharges into the Gulf of Finland. The river passes the towns of Heinola and Kouvola. The town of Kotka is located on the river delta. The length of the river is , but its drainage basin of extends to almost inside the Tavastia, Central Finland, Savonia and Ostrobothnia. The furthest source of the river is Lake Pielavesi, its furthest point being some from the sea measured by flow route. The name of the river, itself, kymi, means "large river", in Old

lake of Central Finland

thumb|View from harbour thumb|Road that separates Pikku-Vesijärvi from Vesijärvi

Puula (or Puulavesi) is a lake in the Kymi River area in the Finnish municipalities of Hirvensalmi, Kangasniemi and Mikkeli. Puula is above sea level, with a surface area of . It is deep at its deepest point, located near Porttisalmi at Simpiänselkä, which is the biggest open area of the lake. Two big lakes Suontee and Puula were one lake until year 1854, when the water level was lowered 2.5 meters. This brought geological stacks above the surface, which are formed by water.

Nilakka is a rather large lake in Northern Savonia, Finland. With the area of nearly 169 km2 it is the 25th largest lake in the country. It's a shallow lake, connected by canals to upper Lake Pielavesi and lower Iisvesi.

lake in Kannonkoski, Kivijärvi and Kinnula, Central Finland, Finland

lake of Finland

lake in Pielavesi, Finland

lake in the countryside of Central Finland

Karikkoselkä is a lake formed in an impact crater in Petäjävesi, Finland. Karikkoselkä is located in Central Finland approximately 30 km east from the centre of Keurusselkä, a much older and larger impact crater. Most lakes in the region are elongated in northwest–southeast direction due to glaciation, but Karikkoselkä is strikingly round.

thumb|Lutakko neighbourhood on the shores of Jyväsjärvi. Lake Jyväsjärvi () is a lake situated in the centre of Jyväskylä in Finland. The lake is sometimes seen as a part of the Päijänne, as both lakes are on the same level ( from sea level) and are connected by the Äijälänsalmi strait.

Iso-Naakkima is a lake in Southern Savonia, Finland, about 10 km south of the town of Pieksämäki. It is notable for having an eroded impact crater under the northwestern part of the lake. It is one of the oldest known, about 1200 million years old (900–1200 Ma, Mesoproterozoic). Of the known craters older than a billion years old, it is also one of the smallest being only 3 km in diameter.

Iisvesi is a rather large lake in Finland. The lake consists of three separate basins: Iisvesi, Virmasvesi and Rasvanki. Located within Tervo, Rautalampi, Suonenjoki and northern Kuopio in a sparsely populated area, its waters are generally pretty clear.

Palokkajärvi () is a lake in Jyväskylä, Finland, covering an area of . The lake is mostly open in shape, with the exception of the Tyyppälänlahti bay in its eastern part extending towards Seppälänkangas. There is also a single island called Palosaari in its mid-western part.

Ala-Kintaus is a rather small lake of Finland. It belongs to the Kymijoki main catchment area. It is located in Petäjävesi municipality in Central Finland. It is a part of Jämsä catchment area.

Vesijako (also Vesijakaa) is a lake in Finland. It is situated in Padasjoki in the region of Päijänne Tavastia.

Tuomiojärvi is a lake in the city of Jyväskylä, Central Finland. The 298-hectare lake has 7 islands. The average depth of the lake is 3.5 metres and the maximum depth is 13.1 metres. The lake has five official beach areas.

lake in Kuhmoinen, Finland

Kuuhankavesi is a medium-sized lake of Finland. It is located in Hankasalmi, Central Finland region. It belongs to the Kymijoki main catchment area.

Köhniönjärvi () is a lake in the Kypärämäki district of Jyväskylä, Finland, covering an area of . The residential area of Köhniö is located to its east, though it does not extend to its shores. The Haapamäki–Jyväskylä railroad passes by the lake's southern shore.

Vehkajärvi is a medium-sized lake in Finland. It is located at the border of Pirkanmaa, Päijät-Häme and Central Finland regions in the Finnish Lakeland. The lake is mostly in the municipality of Kangasala, with smaller parts in the municipalities of Pälkäne, Padasjoki and Kuhmoinen.

lake in Jyväskylä, Finland

Lummene (also Lummenne) is a lake in Finland in the municipality of Kuhmoinen in the Central Finland region.

Saraavesi is a medium-sized lake in Laukaa, Finland. It flows to lake Leppävesi via Kuhankoski rapids. The lake is part of Keitele Canal, a waterway connecting Lake Keitele and Päijänne. Saraakallio rock paintings are located on the shore of Saraavesi.

Aatunselkä is a lake in the municipality of Äänekoski in the Central Finland Province in Finland.

Niskajärvi is a lake located in the Kouvola municipality of the Kymenlaakso region of southern Finland. It is part of the Kymijoki catchment area.

lake or pond in Jyväskylä, Finland