Gareth Huws sat down with Ports, Past and Present and shared the story of a fascinating daily ritual that carried on for nearly a century: the conveyance of a single watch travelling back and forth between Dublin and London via Holyhead.

There are around 29 martello towers dotted around the bay; coastal, circular buildings with curved, nearly-windowless walls. Some have been taken up as unique seaside homes or museums, but many are unused and inaccessible. Most were built in…

From the eighteenth century on, ship captains were able to rely on precise timepieces, known as chronometers, to tell the time accurately, no matter where they were in the world. Still, it was good practice to double check these nautical instruments…