Traveling With a Dog: How to Do an Overland Trip With Your Pet

Traveling with a dog: how to do an overland trip with your pet

Taking the dog on the overland trip is one of the most common decisions, and one of the most underestimated, among those who take on the road. Most Brazilian overlanders who have a pet don't even consider leaving it behind: the dog is part of the family core, and the trip only makes sense with it along. The question isn't whether to take it, it's how to take it without turning the trip into heavy logistics or compromising the animal's well-being.

This article covers the practical points for whoever travels with a pet through South America by car, van, motorhome or 4x4. Most of the information also applies to a cat, although the daily routine is different. For other species (rabbit, bird, reptile), similar principles apply but with each country's specific rules, not covered here.

In short: traveling with a dog through South America by car requires preparation on three fronts: documentation (an international CVI from MAPA, a microchip, up-to-date vaccines, recent parasite treatments), the vehicle (a safe space for the dog, ventilation, accessible hydration), and the routine (frequent stops, shade, food and lodging that accept a pet). Start the veterinary process 30 to 45 days before the trip.

Is it worth taking it?

Before diving into the logistics, the honest question is worth asking. Taking a pet on an overland trip:

Is worth it when:

The dog has an adaptable temperament (likes riding in the car, has no extreme anxiety, accepts a new place).

The trip is long enough to justify the preparation (a short one is only worth it if you already have the basic documentation up to date).

You have the flexibility to adapt the itinerary (stop more, avoid extreme stretches, sleep where a pet is accepted).

Isn't worth it (or at least, is worth thinking hard about):

An elderly dog with a chronic health problem or acute anxiety.

A trip with many days of high altitude (above 4,000m), a dog suffers more than a human from a lack of oxygen.

A big dog on a motorcycle trip or in a vehicle that's too small.

An itinerary with a lot of time in a big city, a museum, a restaurant, where the dog doesn't go in.

Whoever decides to take it usually doesn't regret it. Whoever decides not to take it and leaves it with a trusted person doesn't either, both choices have value.

The documentation (the part that jams up the most)

To cross any South American border with a pet, the central document is the CVI, the International Veterinary Certificate, issued by MAPA (the Ministry of Agriculture). This document attests that the animal is healthy, vaccinated, identified and fit to travel.

The process, in general terms:

An implanted microchip (a mandatory rule for almost all countries). A simple procedure, done by a vet, with a compatible reader.

An up-to-date rabies vaccine (at least 30 days and at most 12 months before the CVI is issued, depending on the country).

Up-to-date multiple vaccines (V8/V10 for a dog, V4/V5 for a cat).

Specific exams depending on the destination country (some ask for a leishmaniasis test or others).

Treatment against internal and external parasites (a dewormer, a flea treatment) within 7-15 days before the CVI is issued.

A veterinary consultation to issue the health certificate.

Requesting the CVI at MAPA, it can be done online or at a local office. The document's validity varies (usually 10 to 30 days).

By country, some critical points:

Argentina and Uruguay, a simpler process. MAPA CVI, vaccines, microchip, treatments. Senasa (AR) and MGAP (UY) check at the border.

Chile, the strictest. It requires a documented treatment against echinococcosis, and the SAG agents are more detailed. Documentation past its deadline is a common reason for refusal.

Bolivia and Paraguay, less formal in practice, but they require a CVI. Don't trust that "they'll understand", take everything in order.

Peru, Ecuador, Colombia, greater restrictions. Specific research for each case.

Rule of thumb: start the veterinary process 30 to 45 days before the departure date. That's the average time to fit in vaccines, exams, a microchip (if needed) and the final CVI issuance within the right validity window.

The vehicle: how to accommodate the dog

The logistics of the space inside the vehicle change a lot depending on the dog's size and the type of trip. General principles:

A dedicated space. The dog needs its own place in the vehicle where it feels safe. It can be a transport crate (for small and medium dogs), an area on the back seat with protection, or a separate compartment in a motorhome/van. A dog loose on the front seat is a recipe for an accident, for both.

A seatbelt or restraint for dogs that ride loose on the seat. There are harnesses with a buckle compatible with a seatbelt, a low investment, high safety.

Ventilation. A dog suffers much more from heat than a human. Functional air conditioning is practically a requirement on a pet trip along a hot road. In a parked motorhome, cross ventilation is the rule.

Accessible hydration. A bowl with water always available, even while moving (there are anti-splash bowls). Refill frequently.

Food and kibble. Carry enough to cover the main stretch, in some countries, the brand of kibble your dog eats may not exist. On a long trip, buying a different local brand is normal, but make the transition gradual.

Use GT Overlander to plan stops in strategic cities, by describing the route in natural language, the AI splits it into stages with mid-size and big cities. Useful for choosing stops in places with a vet, a kibble market and pet-friendly lodging.

The daily routine

The routine with a pet changes the pace of the trip. Principles:

Frequent stops, every 2 to 3 hours at most. The dog needs to pee, stretch its legs, drink water, rest from motion sickness. A beautiful viewpoint, a gas station, a village, any place works.

Heat in a parked vehicle is deadly. Never leave a dog alone in a closed car on a sunny day, even "for 5 minutes". In a hot country (northern Argentina, the Chilean desert), the internal temperature rises brutally.

Shade at the stop. Before having lunch/dinner/stopping for anything, choose a place with shade for the dog to rest outside the vehicle if needed.

Bathing and care. On a long trip, an occasional bath becomes part of the routine. Pet shops in mid-size cities handle it.

Pet-friendly lodging. Increasingly common, but still not universal. Platforms like Booking and Airbnb have a "pet-friendly" filter. A campground almost always accepts. A big traditional-chain hotel usually charges an extra fee. A small-town inn varies, ask beforehand.

Health and risky situations

The real points of attention:

Altitude. Above 3,500m, a dog can have breathing difficulty, loss of appetite, lethargy. Go up gradually, observe closely.

Extreme cold. Patagonia in June-August can hit -10°C or more. A short-haired dog needs a blanket/coat. Paws sensitive to ice.

Extreme heat. Worse than cold. Keep the dog hydrated, in the shade, with baths to cool off.

A local predator. In national parks and wild areas, a loose dog can attract a jaguar, a puma, a vulture. Always a leash.

A snake, spider, scorpion bite. In rural areas of Brazil and northern Argentina, pay attention. A basic pet medical kit helps with first aid.

Escape. At a border, at a new stop, in an unfamiliar environment, a dog can bolt. A collar identified with a phone number (preferably international) and a microchip are lifesavers.

Basic pet medical kit: saline solution, gauze, antiseptic, tick-removal tweezers, an extra dewormer, a veterinary antihistamine (advised by the vet before the trip), a thermometer.

FAQ

And if the dog gets sick in a foreign country?

Vets exist in any mid-size city in South America, and are generally affordable. In a big city, there's a 24h clinic. Plan: note a reference vet in each region of the itinerary before leaving.

Can I leave the dog at a "pet hotel" during a visit to a museum or park that doesn't accept it?

Yes, in a mid-size/big city there's a pet hotel by the day. At a more remote destination, the pet only goes along or stays in the vehicle (with care for the temperature).

Can a big breed dog handle a motorcycle trip?

No. A motorcycle trip with a pet is only viable for a small breed, in a specific transport crate attached to the luggage rack. A big breed is unfeasible.

Is the investment to do all this documentation worth it?

For a single international trip: the spending on pet documentation usually equals a few days of lodging. For whoever is going to travel with a pet frequently, it becomes an annual routine and gets cheaper.

And if I can't get the CVI in time?

You don't cross the border without it. The penalty can range from a refusal of entry to a quarantine of the animal for days, the worst possible scenario. Complete documentation is a non-negotiable rule.

To wrap up

A dog on an overland trip adds logistics, but it adds much more than that. Company on long road hours, a reason to stop where you wouldn't stop, a social agent at a campground with other travelers, a presence that makes a long stop in an unfamiliar city feel like home. The initial preparation is heavy, it's true. But for whoever takes it on, it's one of the trip's decisions you least regret, and the photos of the dog at viewpoints you didn't know still become part of the best memories of the whole trip.