Underwater construction involves building and repairing structures beneath the surface of water bodies like oceans, rivers, and lakes. This specialized field requires skilled divers and advanced technology to create everything from bridges to pipelines. Workers often use tools and equipment designed to function in challenging underwater conditions, ensuring safety and efficiency. One common project in underwater construction is the installation of submarine cables, which are essential for global communication. Additionally, marine engineers play a crucial role in designing structures that can withstand water pressure and corrosion. This work not only supports infrastructure but also helps protect marine ecosystems.