Hidden in a part of the Curonian Spit, there stands a monument honoring Ludwig Hagen, a significant figure in the history of the Spit's afforestation. His work in the 19th century involved systematically studying and applying vegetation to shape and stabilize the sand dunes. This technique not only protected the incredible sandy beaches from erosion but also transformed the landscape. In 1936, an obelisk was erected on the highest dune, with German words inscribed on one side and Lithuanian on the other, commemorating Hagen's efforts in dune afforestation.
The war left its marks on this strategically important site near Klaipėda, where
today visitors can see trenches and historical remnants. L. Hagen, the initiator of dune afforestation and an honorary citizen of the city of Baltiysk (Pillau), was highly active in the construction of ports, canals, and the Spit’s shores, later heading the Prussian construction directorate. This dune location, marked by the obelisk, is easily accessible and popular among visitors due to its vibrant and attractive location along pedestrian and bicycle paths. While the Lithuanian inscriptions have faded due to natural factors, the German inscriptions have been preserved thanks to the efforts of monument preservation enthusiasts.