Before you go
Ask yourself: will my cat or dog be comfortable and happy on a trip? Some animals simply prefer to stay at home and a 'homesick', possibly motion-sick pet will ruin everyone's trip. In such a case it's probably wiser to leave your pet with a friend, relative or hire a 'petsitter'. If that is not possible, you might consider boarding them at a clean, well-run kennel or cattery.
If you do decide to take your pet along, you must take as much care with the preparation of your pet's trip as your own. If you plan to travel by plane, bus, train or boat, find out if your pet will be welcome and what kind of reservations and transport arrangements must be made. If you'll be staying at hotels or campsites, you must check if animals are allowed or if kennel facilities are available. If you're staying with friends or family, make sure your pet is also invited.
Travelling abroad with your pet
Check the DEFRA website for the latest information on requirements for travelling for pets from the UK.