We are going to the show at Gatehead. We will be there for both days, but usually find that the Sunday is quieter, somehow. I have no idea why, because whilst there are often fewer cats there on a Sunday, it is usually not a massive decrease on the entry for Saturday. And as for what you need for a TICA show -well, much the same as Saikou said, except that the stuff you put in your pen can be any colour you want and you can also take a favourite bed for your cat too - just make sure it's not too big for the pen!
