Our cat has lived aboard for four years and the dog for three. People ask, usually with a slightly horrified expression, how on earth you keep animals on a boat full-time. The honest answer is that it is mostly ordinary: walks, feeding, vet visits, the same as ashore, just with a gangway in the middle. What changes when you stop being a visitor and become a long-term liveaboard in France is the admin and the routine, not the animals themselves. Here is how it actually works once you are settled in for the long haul.
The one-off arrival is not the long-term reality
Most guidance you will find online is about getting a pet into France in the first place. That matters, and if you have not crossed yet, the entry rules for taking your dog or cat to France by boat are the place to start: microchip, rabies vaccination, and either an EU pet passport or an Animal Health Certificate depending on where you set off from. But once you are living aboard in France, the AHC route in particular falls away. An AHC issued in Great Britain is valid for a single trip into the EU, up to four months of travel within it, and four months for return. It is not a long-stay document.
That mismatch is the first thing every long-term liveaboard with a pet has to solve.
Get a French (or EU) pet passport
The clean solution is to have your animal issued with an EU pet passport by a vet in France. Once you have a French vet relationship going (more on that below), ask them to issue one. An EU pet passport is open-ended in a way the AHC is not: it records the microchip, the rabies vaccination history and treatments, and it stays valid as long as the rabies cover is kept up. For an animal that is going to be based in the EU for years, this is the document you want. A British animal that arrived on an AHC can be moved onto an EU passport by a French vet, which removes the need to buy a fresh certificate, currently around 200 pounds in the UK, for every hop home and back.
The practical knock-on is that you stop being tied to vets back home for your travel paperwork. Your French vet becomes the keeper of the record.
Finding a vet when you keep moving
A liveaboard who cruises is never registered with one practice the way a land dweller is, and that is fine. French veterinary care is widespread and good. There is a vet (un veterinaire) in almost every coastal town of any size, and many in the marina towns are used to seeing cruisers' animals. I keep a short list of practices near the harbours I frequent, with phone numbers saved before I need them.
A few things worth knowing on cost. A routine consultation in France typically runs somewhere in the region of 30 to 50 euros. A rabies booster is usually similar once you add the consultation. These are 2025 ballpark figures and vary by region and clinic, with city practices on the Cote d'Azur at the higher end. Always ask for the price when you book, because there is no fixed national tariff and it varies a lot.
For genuine emergencies outside hours, France has veterinary emergency cover: many areas are served by an on-call rota, and there are 24-hour clinics in the bigger cities. The national emergency number 112 is for human emergencies, not pets, so have a local out-of-hours vet number to hand instead. I learned that the hard way at two in the morning with a dog that had eaten something off a pontoon.
The treatments that keep the passport alive
The non-negotiable is rabies. Keep the booster current strictly to schedule, because a lapsed rabies vaccination invalidates the passport for travel and re-starts the clock, including the 21-day wait after a primary vaccination before you can move across borders again. Diarise it.
Tapeworm treatment (praziquantel) is required within a 1 to 5 day window before entering certain countries, the United Kingdom among them, so if you plan to sail home it has to be timed and recorded by a vet. Day-to-day, France has plenty of ticks, especially if you walk a dog through coastal scrub and pine, so I keep up flea and tick cover year-round rather than seasonally. Heartworm is a real consideration in the warm Mediterranean south, where mosquitoes carry it, and is something to discuss with a vet if you winter down there.
Daily life with an animal afloat
The routine is the bit that surprises people by how normal it is. The dog learns the gangway in a day. We rigged a simple ramp for the older dog and a net along the guardrails so the cat, who is a confident climber, has a margin for error. A man-overboard recovery plan for an animal is worth a thought before you need it: a pet lifejacket with a strong grab handle is cheap insurance, and ours both wear one on passage.
Toileting is the obvious question. The cat has a tray that we empty ashore. The dog goes ashore morning and evening like any dog, which incidentally forces a daily walk routine that does us all good. Marinas with easy pontoon access make this painless; some town quays with a long locked gangway and a tide do not, so I factor that in when choosing where to stay. Liveaboard-friendly harbours tend to be the easy ones, and the wider question of which marinas welcome long-term residents is covered in liveaboard-friendly marinas in France.
Heat is the real seasonal hazard, not cold. A closed-up boat in a Mediterranean August becomes an oven fast, and animals cannot sweat it off. We never leave the dog aboard sealed up in summer, run a wind scoop and shade, and keep water everywhere. In winter the opposite problem, a cold damp cabin, is more about our comfort than theirs, and the same fixes that keep us dry keep their beds dry too, which I go into in heating and damp through a French winter afloat.
Insurance, paperwork and staying legal
Pet insurance exists in France and is worth considering for a long-term animal, given an unexpected operation can run well into the hundreds or low thousands of euros. Shop around, because cover and exclusions vary widely.
Keep the passport, vaccination record and microchip number together with your own documents. If you ever sail the animal across a border, in or out of the EU, the document folder is what gets checked, not the animal's charm. The same principle that governs your own long-term residency status, covered in living aboard France as a foreigner, applies to the four-legged crew: be the one with the paperwork in order before anyone asks for it.
The honest summary
Animals adapt to boat life faster than their owners do. The work is in the admin: convert to an EU pet passport, keep rabies current to the day, line up vets near your harbours before you need them, manage heat in summer and damp in winter, and time the tapeworm treatment if you sail home. Do that and a dog or cat aboard is one of the best parts of the liveaboard life in France, not the burden everyone ashore imagines.
Sources: GOV.UK (AHC validity, tapeworm and rabies rules), French veterinary fee surveys 2025, official EU pet travel guidance.
