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An enormous dragon has just appeared on the banks of a Welsh castle.

The dragon, which is four metres long, has reptile-like black and red scales, smoke-flaring nostrils, and an outreached claw.

It was unveiled overnight by the same people who created Cardiff Castle's amazing Ball in the Wall .

Read more: Here's how you reacted to the amazing Caerphilly Castle dragon

(Image: Wales News Service) (Image: Wales News Service)

(Image: Wales News Service)

(Image: Wales News Service)

The dragon was sculpted and moulded before being built out of fibreglass.

It weighs one tonne and took a team of 15 six weeks to construct.

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It was created by Cardiff-based prop design specialists, Wild Creations.

Watch the dragon being made

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Its arrival marks the launch of Cadw's Historic Adventures campaign, which will take place at Cadw sites during Visit Wales's Year of Adventure.

One of the events is a public screening of the Wales v England Six Nations game in Caerphilly Castle .

There will also be a weekend celebration of real ale and craft beers at Chepstow Castle.

Matt Wild, owner of Wild Creations, said: "The medieval backdrop of Caerphilly Castle is the perfect location for this mythical, reptile-like monster. It could almost be the billboard of a Hollywood blockbuster! We're delighted with the end product and hope that it inspires people from across Wales to pay the site, and the dragon, a visit this spring."

Read more: This is how the ball in the wall ended up in Cardiff Castle

Visitors to Caerphilly will be able to see the dragon for free until 3pm on Sunday, March 6, or later by normal site-admission when it moves inside the castle from March 7 until the summer.

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Those that take the most dramatic pictures "being captured" by the dragon and use the hashtag #HistoricAdventures on Facebook or Twitter will be in with a chance of winning one of 10 Cadw Explorer Passes.

To find out more about Cadw's Historic Adventures, visit http://cadw.gov.wales/fun/historicadventures