Hi Judith
It sounds to me like you will be fine, as you love walking and are used to the hills of Wales. This tour does require a reasonable level of fitness but there are also plenty of opportunities to stop and rest along the way. None of our walking holidays are too physically demanding as the idea is that they should be fun, and my feeling is that this holiday will be just right for you. However, if you do have any serious concerns, I would urge you to talk to your GP.
I'm sure you will have a wonderful time.
Kind regards,
Olly, your editor