Europa-Park is located in the border triangle Germany - France - Switzerland and very convenient to reach.
Please note that the motorway exit 57b Rust is closed from 09.11. until 11.11.2019. If coming from the north, you can take exit 57a Ettenheim and arrive via Kappel-Grafenhausen. If coming from the south, take exit 58 Herbolzheim and turn off via Rheinhausen. Thank you for your understanding.