Wobbly Blue MarbleThe planet, explained for curious children.

Lake · Sweden

Vättern

Vättern is the second-largest lake in Sweden, after Vänern. It lies in the south of the country and is famous for its clear, clean water.

Where is Vättern?

Countries on its shores: Sweden.

Middle of the lake: 58.40° N, 14.60° E

The story behind it

The water of Vättern is so clear and clean that it is good enough to drink. The lake is up to 128 metres deep; the southern part is much deeper than the northern part. Arctic char live in the cold water, and people here call them Vättern char. Salmon and whitefish swim here too. In the south lies the island of Visingsö. Towns such as Jönköping, the largest, Motala, Vadstena, Hjo and Karlsborg stand on the shore. The river Motala ström carries the water to the Baltic Sea. Since 1832 the Göta Canal has linked Vättern with Vänern, so boats can travel between the two big lakes. Every year in June, cyclists race around the lake in the Vätternrundan: a ride of about 300 km that starts and ends in Motala. Some 20 000 people take part.

Find it on the globe

Vättern is there as a small blue dot with its name, right on the water. From far away the planet is only a blue ball; detail arrives as you zoom in, and this one appears once you are close enough. Open it on the globe.

It sits at its real coordinates, not near them — the same numbers listed in the facts above. Switch off the layer for this kind of place and it disappears again; the buttons for that are down the right-hand edge.

Questions children ask

How big is Vättern?

Vättern covers about 1 912 km² and is up to 128 m deep. It holds about 77 km³ of water.

Can you drink the water of Vättern?

Yes, the water of Vättern is of drinking-water quality. The lake is also famous for being very clear.

How can boats get from Vättern to Vänern?

They use the Göta Canal, which has linked the two lakes since 1832. Vänern is the largest lake in Sweden, Vättern the second-largest.

Where these numbers come from

Every figure on this page was checked against public reference sources before publication. Where sources genuinely disagree, the text says so.

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