The Maasvlakte Barrier is a significant coastal defense structure located in the Port of Rotterdam, Netherlands. Completed in 2015, it was designed to protect the port and surrounding areas from rising sea levels and storm surges. The barrier consists of a series of large, movable gates that can be closed during extreme weather events to prevent flooding. This innovative engineering project is part of the larger Maasvlakte expansion, which aimed to increase the port's capacity and improve its resilience against climate change. The Maasvlakte Barrier not only enhances safety but also supports the economic activities of one of the world's busiest ports.