For a Nice-to-London collection, specify the municipality and full address. An origin in Nice itself and one elsewhere along the coast or inland need different pickup details, so include the agreed meeting point and any access information. If your UK destination is outside London, provide it now rather than leaving the last part of the journey open.
List the passengers, pet size, luggage and any crate, carrier or restraint. Explain your pet’s usual routine and whether medication, mobility assistance or extra settling time needs to be considered. The route can then be discussed around the actual people, animal and addresses involved, without assuming a fixed journey duration.
London-to-Nice is the matching outbound route. Marseille-to-London is another South of France option; the South of France owner guide covers broader trip preparation.