Germany
Hesse
Certified Beach Town
Mainz-Kostheim
Mainz-Kostheim's beaches
- Certified since 2026
Field notes — quick answers
Does Mainz-Kostheim have Blue Flag beaches?
Yes — we map 1 beach in Mainz-Kostheim holding Blue Flag certification for the seasons we track, each listed with its certification year. Certification is seasonal and re-awarded every year.
Where is Mainz-Kostheim?
Mainz-Kostheim is a beach town in Hesse, Germany. Its beaches are on the interactive map alongside every other town we track.