their cat while they are away on holiday?

Please provide me with more context! I need more information to understand what you're asking. For example:

* Who is "they"? Are you talking about a specific person or group of people?

* What do you want to know about their cat? Do you want to know how they take care of their cat while they're away? Do you want to know if they are leaving their cat alone?

* What is the purpose of your question? Are you trying to offer help, are you concerned about the cat's well-being, or are you just curious?

Once you give me more information, I can help you better.