The Llantrisant Mari Lwyd will be doing her rounds and making merry on the Sunday before Christmas, December 21.
The Mari's timetable (very approximately) will be:

Meet at 12 noon in The Dynevor Arms, Groes Faen, CF72 8NS;
1pm: The Miskin Arms, Miskin, CF72 8JQ;
1.45pm: The Penny Farthing, Southgate,CF72 8DQ (where the new landlord/lady will welcome us);
2.30pm: Llantrisant Old Town, including The New Inn, CF72 8ED, The Bear, CF72 8DA, a private house, and the Wheatsheaf, CF72 8BQ - just come looking for us!
4.30pm: Cross Inn, in Cross Inn, CF72 8AZ.

Donations and contributions go to the Marie Curie Hospice, Penarth.
        
Then in the evening (this is an optional trip): The Boar's Head, Tyle Garw, CF72 9EZ - Landlord Wayne Owen's charity do with choirs, real ales and Christmas merriment. The Mari will make an appearance and collect that evening for Wayne's charity.

Details on this venerable tradition can be found here.