BeachUp has the most complete list of beach volleyball courts in Dortmund and worldwide. The courts are entered and updated by the community, so the information can stay up-to-date. If you see that courts or information are missing for courts in Dortmund, you can contribute those information yourself and help the global beach volleyball community. Download the app and give it a go.
You can find places to play in Dortmund in the BeachUp App