The Prince of Wales visited a futuristic hydrogen car company in Llandrindod Wells and the Duchess of Cornwall was treated to a taste of Hay-on-Wye, as the Royal couple’s annual tour of Wales continued.

A keen environmentalist, Prince Charles was given a tour of the Riversimple workshop before test-driving one of the high-tech vehicles.

Meanwhile the Duchess spent time in Hay, visiting Booth’s bookshop.

She was also shown Booth’s Cinema Room, from where the 2021 Hay Festival was broadcast, and was able to see images from the festival and meet writers and supporters.

Children from Hay Primary School gave readings of their creative writing before the Duchess visited Addyman’s Books and Shepherd’s Ice Cream Parlour, where she was treated to a delicious tasting.

The Duchess has visited the Hay Festival three times in the last ten years, and in 2013 she was accompanied by the Prince of Wales.

In a recorded message which opened this year’s Hay Gala, the Duchess said: "For over 30 years, Hay has been bringing readers and writers together at sustainable events, reaching more than 5 million people of all ages across 5 continents. I am one of those 5 million. I absolutely love the Hay Festival."

Later the Prince of Wales met the Poet Laureate, Simon Armitage, at Llwynywermod, his Welsh home.