Students and graduates from the University of South Wales have developed and made a dragon as part of a Welsh advertising campaign.
They used this model, seen at Caerphilly Castle, as a basis for their design. The advert sees the creature fly from Caerphilly to Chepstow, Cardiff Bay, Harlech Castle, and then finally, landing at Caernarfon Castle.
Watch Megan Boot's exclusive behind the scenes look to see how it was made:
It took the group of 12 students and graduates of the University of South Wales weeks to produce the film for Cadw:
The students say it's been an exciting project to be involved with, and hope it will showcase their talent.
The Hay Castle Trust has won a £528,600 development grant from the Heritage Lottery Fund, to restore the castle and open it to the public.
The grant will help develop proposals for a second stage application for more than £4.8million to complete the restoration.
The trust's plans include creating a centre for the arts, heritage education and training for the community.
The funding was announced at an event at the Hay Festival.
Speaking at the event, First Minister Carwyn Jones said: "It is with great ambition, drive and perseverance that Hay Castle Trust has succeeded in its Heritage Lottery Fund bid.
"I am pleased that this first round of funding allows the trust to start work on developing its plans to restore the building for the future enjoyment of the public."
The Minister for Culture and Sport, John Griffiths, says some of Wales’ finest historic buildings are set to benefit from £240,800 of funding.
In total nine projects across the country will receive Welsh Government grants - ranging from £7,000 to £40,000 - for essential repairs and restoration work.