Wish you were here

I love spending time with my three-year-old Border Collie, Maisie, and we often go away on holiday together to Pembrokeshire, where we spend a week taking long walks along the coast. However, this year I would love to have a week where we can spend quality time together doing lots of fun activities. We especially like agility and flyball, so it would be great if we could incorporate these into our holiday too. Can anyone recommend some activity holidays for dogs and their owners we could look into?
Judy Hall