Untersee and Seerhein: Shallows and grounding

On the map

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Untersee and Seerhein: how the place works

The Untersee is much shallower than the Obersee, and current runs in the Seerhein between Konstanz and Gottlieben. The level varies by more than a metre and a half through the year: what carries water in June is silt in February.

Untersee and Seerhein: what breaks there

Grounding in the shallows outside the channel, propeller and rudder damage in the reed belt, and contact with pontoons at unusually low water. Rarely serious, but frequent.

Untersee and Seerhein: what this means for your policy

A boat on Lake Constance needs registration under the lake's navigation rules, and the policy assumes it. Also check whether grounding is covered without a wear deduction on the drive.

Cruising range

In the calculator this spot falls under German inland waters

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