The Celtic Routes cover the three Irish counties of Wicklow, Waterford and Wexford and the three Welsh counties of Pembrokeshire, Ceredigion and Carmarthenshire.
Ireland
The Dearg Due of Waterford
There are many stories of vampirism in Ireland and one of the most frightening creatures is known as the Dearg Due, meaning 'Red Thirst'.
Many centuries ago in the area that is now known as Waterford, there lived a beautiful young woman who was deeply in love with a farm labourer and they had made plans to marry.
Unfortunately for them, her father cared only for money so instead, he forced her into an arranged marriage with a much older, wealthy man.
The young woman's husband was a cruel man and kept her locked in a tower until she died – the villagers took her body and buried her under what is now known as Strongbow's Tree.
It is said her spirit rose and sought revenge on those who had ruined her life.
The spirit of the young woman preyed on young men, luring them with her beauty before feasting on their blood.
Quay of Waterford, Ireland
Many claims have been made of ghostly sightings at the ancient Quay of Waterford city.
The town has a long maritime history, since it was established by the Vikings in the 10thC.
And over the centuries many people have reported sightings of ghostly figures of sailors and ships from long ago.
Hook Lighthouse, Wexford
Hook lighthouse is the world's oldest operational lighthouse, having stood for over 800 years on the Hook Peninsula.
There has supposedly been a fire beacon there since the sixth century, tended by monks, but powerful knight William Marshall is believed to have built the existing lighthouse in the mid-13th century to guide ships to his port of Ross.
An eerie feeling is said to seep throughout the lighthouse, having been reported and written about by many visitors.
It is said that William Marshal himself haunts the lighthouse, keeping an eternal vigil of the seas from his tower.
Bray Head, Wicklow
County Wicklow is known for its walking trails, and the coastal path from Bray to Greystones is one of the best.
However, a Romeo and Juliet type fable haunts the spot known as Lover's Leap Rock in Dargle Valley, situated along the trail.
It is said that every 21 June, the ghost of a devastated woman appears.
Having been unfaithful to her beloved, which led to his death from heartbreak, she is said to have sat at his graveside for several days before taking her life on the rock by leaping into the raging waters below.
Wales
Pentre Ifan Burial Chamber, Pembrokeshire
This megalithic dolmen, defined as a specifically constructed stone tomb, is a site of great intrigue.
Constructed from the same Preseli Bluestones used on its 'big brother' at Stonehenge, Pentre Ifan, near Newport (Pembrokeshire) also shares the same sense of mystery about its true purpose.
It's generally considered to be a communal burial chamber, but no traces of bones have ever been found here.
Newton House, Dinefwr, Carmarthenshire
Newton house, which sits within the 800-acre Dinefwr estate, is said to be haunted by Elinor Cavandish.
The fortress, on a hilltop overlooking the Tywi Valley, is said to be haunted by the ghost of Lady Elinor Cavendish.
The sister or cousin of the lady of the house, in the 1720s, Elinor was forced to marry a man she, didn't love, and fled her family at Newton House.
Her enraged husband followed her and strangled poor Elinor and she is is said to be wandering the halls to this day.
www.nationaltrust.org.uk/dinefwr
Devil's Bridge, Ceredigion
Three separate bridges span the 90m waterfalls of the River Mynach, with one built on top of the other between the 11th and 19th centuries.
According to the legend, the original bridge was built by the Devil as it was considered too difficult a task for mortals.