On July 1-3, 2019, as part of the project “Trees for Green Infrastructure of Europe”, a study trip “Protection of old trees on dikes and flood embankments: conflicts – solutions – implementation based on examples from practice” to the Lewitz region in Mecklenburg in Germany took place. During these two days, about 30 participants – including representatives of Polish Waters, environmental protection institutions and non-governmental organizations – participated in a seminar and field trips. Technical solutions for the repair of dykes and flood embankments have been presented on specific examples, in which it was possible to achieve the objectives of the investment while preserving old, valuable trees growing along the watercourses. The participants got acquainted with the process of preliminary analyzes, design, implementation works and saw their effects in the field.