A ceremony will take place at Cardigan Castle today, ahead of a major refurbishment of the site.
The £11m project will revamp the 900-year-old site into a facility for community and recreational use as well as for learning.
Campaigners still need to raise £150,000 to secure the project.
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Amber Davies, from Denbigh, was awarded £50,000 with along with her boyfriend after being crowned the winners of the reality dating show.
Largely dry tonight with clear spells. Sunny spells tomorrow.
A bike stuntman, known as the 'Kangaroo Kid', has been injured after falling off during a live performance at the Royal Welsh Show.