Rescuers watching dolphin trapped in Allington Lock on River Medway BBCDolphin returns towards sea after escaping Allington lock BBCDolphin in Allington Lock, near Maidstone, on River Medway manages to swim free into open water in high tide Kent OnlineRescuers monitoring dolphin trapped in river lock AOL.comStranded dolphin manages to escape River Medway lock in Kent Kent Live
