Shetland Islands councillors back a draft strategy to investigate undersea tunnel links between some of the islands, following long-running concerns about isolation and population decline. Multiple outlets report the council vote to move forward with early work, including looking at financing options for the first tunnel projects. The proposal is described as potentially involving up to four subsea tunnels and is estimated to cost up to £1.5 billion. The initial phase would focus on connecting Shetland’s Mainland with two large northerly islands, Yell and Unst. Reporting also indicates the council expects the process to progress through further planning steps before construction decisions are taken. One outlet notes a possible eight-year timeframe for when the first tunnels could open, subject to approvals and funding. The strategy is presented as aimed at improving connectivity for residents and supporting future population and economic outcomes, while detailed plans and funding models for the first projects are still to be determined.