At 8pm on a mild spring evening at Carmarthen train station, the Transport for Wales cleaning team are getting ready for work. One of them has recently celebrated his 80th birthday - and after 25 years of cleaning trains, he has no plans to stop.
William Gwyn Thomas, known as Gwyn, is working as hard as ever and is proud of what he does. "I love the job," said Gwyn, who works with his team to clean between 18 and 26 carriages on an evening shift, ready for the next morning.
"Pride is everything and we are really proud to get the trains looking good for the people using them the next day... knowing you are doing something important for the customers."