Lighthouses are where we encounter the harshest face of nature. Salt, wind, waves, humidity… All these factors make it essential for coastal infrastructure to be not only efficient but also highly durable. When it comes to navigation lanterns guiding maritime traffic, this durability becomes a critical factor. This is where SonarSea solar-powered marine lanterns emerge not just as a lighting solution, but as a strategic investment to ensure the continuity of maritime safety operations.