In the first edition of the Danube Streamwaves Soundmap Podcast from Ulm, we get to know the Danube as the border river between Bavaria and Baden-Württemberg. Although Ulm and Neu-Ulm work closely together in many ways, there are also huge differences between the neighbouring cities. This episode focuses on Ulm and Neu-Ulm and their joint solidarity partnership with Bilhorod-Dnistrovskyi, a city in Ukraine of a similar size to Ulm and located near the Danube. The partnership has been in place since spring 2023 and is actively practised in cooperation with the Danube Office, among others.