Aquaphobia
Uncommon17.7%ObjectiveOptionalAnywhere
Scandinavia
Travel across the Øresund Bridge between København and Malmö (requires Scandinavia DLC)
This is the East-most bridge at the Southern edge of Sweden, between Copenhagen and Malmo (to use the English names). Its a large bridge, and the achievement should pop once you're on it. It doesn't matter whether you're in a delivery job or not.