I thought they were going to build a bridge across the Irish Sea or chunnel under it. I could just picture Tristan cruising Isolde all the way to Cornwall as she and Brangäne grumped in the back seat.
Well AFAIK, “chunnel” is a portmanteau that means “channel tunnel”, and there have been WWII munitions dumped in the North Channel between Scotland and Ireland resulting in ruling out tunneling there. I’ve heard all sorts of plans for tunnels between the two islands, including one that joins the Isle of Man to both of them.