Officials have officially broken ground on the construction of the world's longest underwater rail tunnel, a project set to transform transportation and connectivity between Finland and Estonia. The ambitious tunnel, known as the FinEst Link, will span approximately 100 kilometres beneath the Gulf of Finland, creating a high-speed rail link between Helsinki and Tallinn. The project aims to significantly reduce travel time between the two cities, cutting the current two-hour ferry journey to just 30 minutes by train. This will enhance economic ties, tourism, and daily commuting, promoting greater integration between Finland and Estonia. The FinEst Link is expected to cost around ?15 billion and is scheduled for completion by 2035. It will feature twin rail tunnels, each carrying a single track, as well as a service tunnel for maintenance and emergencies. The tunnel is designed to accommodate both passenger and freight trains, boosting trade and logistics in the region. Environmental considerations are at the forefront of the project, with extensive studies conducted to minimize the impact on the marine ecosystem. The tunnel will incorporate sustainable construction practices and state-of-the-art technology to ensure safety and efficiency. The groundbreaking ceremony was attended by key officials from both countries, who emphasized the project's significance for regional development and European connectivity. They highlighted the tunnel's potential to create jobs, stimulate investment, and foster innovation in infrastructure and transportation. Once completed, the FinEst Link will stand as a monumental engineering achievement, exemplifying international cooperation and technological advancement. It promises to transform travel and trade in Northern Europe, setting a new standard for underwater rail projects globally.