Most of us are made to wait years to fulfill our ultimate life goals, but Britain's youngest trainspotter has achieved one of his at the age of just five.

Dartford youngster Max Prime was given the chance to live out his dream of being a conductor during a memorable day alongside Southeastern rail staff in the October half-term.

Max's mum Thayer had written to the rail operator to try and get some posters of trains and the new look London Bridge station to go on his bedroom wall, but what followed was an unforgettable experience working on the massive rail network.

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Having impressed Southeastern with his almost encyclopaedic knowledge of trains and carriages, Max enjoyed a surprise visit to his home by Dartford station manager Richard Lloyd, who handed over a pint-sized uniform and invited him to join the team.

While his classmates were spending their half term hunting Pokémon, the fresh-faced schoolboy was helping passengers, selling tickets and dispatching trains with his very own whistle and paddle board.

He got to travel in the high speed train at 140 miles per hour, and even sampled the experience of being a driver - albeit in a stationary carriage.

VIDEO: Britain's youngest trainspotter

Max said: "I'm really excited because I'm going to go on a Southeastern train, in the actual front carriage, with real people that work on the trains - and in the stations."

The youngster described it as "the best day of his life" and was clearly a popular addition to the Southeastern team.

Mr Lloyd added: "You can see how much he loves trains, so we wanted to give him a chance to be part of our team for the day. Our passengers clearly love him as much as we do - everyone is smitten.

"It was great to show little Max the work we all do looking after our passengers and helping people on their journeys every day."