Indonesia is planning to construct a massive seawall stretching 700 kilometres along Java's coast in an effort to combat rising sea levels and land subsidence. While many residents see the project as a potential lifeline against flooding, climate experts warn that such fortifications could worsen erosion elsewhere and harm local ecosystems. The timeline for the wall remains uncertain, with financing still in question, and some villagers fear it may arrive too late to save their homes. Experts suggest that nature-based solutions like mangroves and reefs, or more targeted interventions, could be more effective and sustainable alternatives.