The Wayro route from Buenos Aires to Barra de Valizas, Uruguay is 518 miles (833 km), about 11 h 10 min of driving without stops. You cross from Argentina into Uruguay at about mile 167, at the Gualeguaychú–Fray Bentos bridge.
Full advisory: Argentina, Uruguay. Advisory issued: Argentina July 10, 2026; Uruguay July 28, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Drivers in Argentina tend to be aggressive, especially in Buenos Aires, and often ignore traffic regulations.”
- Uruguay: “Several of the main highways are particularly accident-ridden.”
| Total distance | 518 mi (833 km) |
|---|---|
| Driving time, no stops | 11 h 10 min |
| Main roads, in order | AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 → I-B |
| Border crossing | about mile 167, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Ciudad de Buenos Aires, Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado, Rocha |
| Fuel estimate (car at 25 mpg) | about 20.7 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Getting across the Argentina–Uruguay border
The route crosses at about mile 167, at the Gualeguaychú–Fray Bentos bridge, from Entre Ríos into Río Negro. Plan on two checks on each side: immigration for your passport and customs for the car.
| Entering Uruguay (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. |
|---|---|
| Driving in Uruguay | You can drive on your U.S. license. |
| Entering Argentina (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid when you enter; leave a blank page for the entry and exit stamps. |
| Driving in Argentina | A valid U.S. license usually works; an International Driving Permit is recommended. |
| Rental car | Cross only if the rental company authorizes it in writing and gives you the papers for the border; ask before you book. |
Sources: U.S. State Department, Uruguay (updated August 13, 2026); U.S. State Department, Argentina (updated July 16, 2026). Checked October 10, 2026; rules change, so confirm before you go.
How the Buenos Aires to Barra de Valizas drive plays out
RN12 (47 mi) and RN9 (40 mi) carry about 17% of the 518 miles. The first 167 miles are in Argentina; the last 351 are in Uruguay. It runs through 10 regions: Ciudad de Buenos Aires, Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado, Rocha. Of the 9 stops listed below, 2 are within a mile of the road.
The route from Buenos Aires to Barra de Valizas, road by road
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–2 | 2 | Ciudad de Buenos Aires |
| AV1-N | 2–8 | 6 | Ciudad de Buenos Aires |
| connecting roads | 8–10 | 2 | Ciudad de Buenos Aires |
| RN9 | 10–50 | 40 | Ciudad de Buenos Aires, Buenos Aires |
| RP6 | 50–55 | 5 | Buenos Aires |
| RN12 | 55–102 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 102–138 | 36 | Entre Ríos |
| local roads | 138–145 | 7 | Entre Ríos |
| RN136 | 145–164 | 19 | Entre Ríos |
| connecting roads | 164–167 | 3 | Entre Ríos |
| local roads | 167–263 | 96 | Río Negro, Soriano |
| connecting roads | 263–264 | 1 | Soriano |
| local roads | 264–300 | 36 | Colonia, San José |
| connecting roads | 300–303 | 3 | San José |
| local roads | 303–400 | 97 | San José, Canelones, Maldonado |
| I-B | 400–405 | 5 | Maldonado |
| connecting roads | 405–406 | 1 | Maldonado |
| local roads | 406–518 | 112 | Maldonado, Rocha |
- Mile 11 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 72 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 167 of this route: Entre Ríos → Río Negro (international border)
- Mile 183 of this route: Río Negro → Soriano (region line)
- Mile 264 of this route: Soriano → Colonia (region line)
- Mile 281 of this route: Colonia → San José (region line)
- Mile 325 of this route: San José → Canelones (region line)
- Mile 395 of this route: Canelones → Maldonado (region line)
- Mile 452 of this route: Maldonado → Rocha (region line)
Breaking up the drive: stops between Buenos Aires and Barra de Valizas
- Right off the route (under 1 mile): Tierra Santa (mile 6), Teatro Macció (mile 301)
- Nature and outdoors: Cerro Pan de Azúcar Native Wildlife Breeding Station (mile 406), La Sirena Beach (mile 511)
- Museums and history: Museo Nacional del Hombre (mile 6), Museo Histórico Cornelio de Saavedra (mile 10), Calera Real del Dacá (mile 185), Iglesia de Cristo Obrero y Nuestra Señora de Lourdes (mile 372)
- With kids: Tierra Santa (mile 6)
Tierra Santa
Tierra Santa is a religious theme park in the city of Buenos Aires, in Argentina.
Museo Nacional del Hombre
In the Belgrano district of Buenos Aires, the Museo Nacional del Hombre is a national museum focused on the archaeology of South America's Indigenous peoples.
Museo Histórico Cornelio de Saavedra
Inside Parque General Paz on Avenida Crisólogo Larralde, the Cornelio de Saavedra Historical Museum is a history museum of the City of Buenos Aires.
Frigorífico Anglo del Uruguay
The former Anglo meatpacking plant on the Uruguay River at Fray Bentos began shipping frozen meat in 1924, on the site where Liebig exported meat extract and corned beef from 1865. It is part of a UNESCO World Heritage landscape inscribed in 2015.
Calera Real del Dacá
On the eastern edge of Mercedes beside the Dacá stream, the ruins of the Calera Real lime works date to 1722 and are considered the region's first industrial site; recent works added visitor circuits, lighting and interpretive signs.
Teatro Macció
San José de Mayo's Teatro Bartolomé Macció is a traditional theater, regarded as the city's most important building architecturally and declared a Historic Monument of Uruguay in 1984.
Iglesia de Cristo Obrero y Nuestra Señora de Lourdes
Engineer Eladio Dieste's Church of Christ the Worker in Estación Atlántida, inaugurated in 1960, joined UNESCO's World Heritage List in 2021. Look for its wavy brick walls and roof, an openwork brick bell tower and an underground baptistery.
Cerro Pan de Azúcar Native Wildlife Breeding Station
Near Piriápolis in Maldonado, this breeding station for native wildlife on Cerro Pan de Azúcar is surrounded by native vegetation and offers guided visits, including a native wildlife trail and a path up the hill.
La Sirena Beach
About 2.5 km north of Aguas Dulces, La Sirena is one of Uruguay's two official naturist beaches, backed by vegetated dunes, small marshes, lagoons and pine and acacia woods where coastal birds are common.
When you get to Barra de Valizas
Parque nacional Cabo Polonio
Part of Uruguay's national protected areas system since 2009, Cabo Polonio National Park spans 25,820 hectares of coastline, ocean and offshore islands.
Cabo Polonio Lighthouse
Standing on the Cabo Polonio headland in Uruguay's Rocha department, this lighthouse looks out over the Atlantic Ocean and was built in 1881.
Dunes of Cabo Polonio
Inside Cabo Polonio National Park in Uruguay's Rocha department, a band of natural sand dunes runs along the Atlantic Ocean.
More drives to Barra de Valizas
- Maldonado to Barra de Valizas
- Montevideo to Barra de Valizas
- Veinticinco de Agosto to Barra de Valizas
- Nueva Helvecia to Barra de Valizas
- Colonia del Sacramento to Barra de Valizas
- Conchillas to Barra de Valizas
More drives from Buenos Aires
- Buenos Aires to Magdalena
- Buenos Aires to Ayacucho, Argentina
- Buenos Aires to Sierra de La Ventana
- Buenos Aires to Luján
- Buenos Aires to San Antonio de Areco
- Buenos Aires to Arrecifes
Continue Your Adventure
Frequently asked questions
How long is the drive from Buenos Aires to Barra de Valizas, Uruguay?
About 11 h 10 min of driving without stops, over 518 miles.
How far is Barra de Valizas, Uruguay from Buenos Aires by car?
About 518 miles (833 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.
Where does the Buenos Aires to Barra de Valizas drive cross the border?
At about mile 167, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Buenos Aires into Uruguay?
No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. You can drive on your U.S. license. (U.S. State Department, updated August 13, 2026.)
Is it safe to drive from Buenos Aires to Barra de Valizas, Uruguay?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions; Uruguay Level 2: Exercise Increased Caution. Read the full advisory before you go.
Which highways go from Buenos Aires to Barra de Valizas?
In order: AV1-N, RN9, RP6, RN12, RN14, RN136 and I-B. The road-by-road table above shows the route miles for each one.
What are good stops between Buenos Aires and Barra de Valizas?
Closest to the road: Tierra Santa (theme park, mile 6, 0.2 mi from the route); Museo Nacional del Hombre (museum, mile 6, 1 mi from the route); Teatro Macció (theater, mile 301, 0.8 mi from the route). All stops are described above.
How we put this guide together
Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route: at least one strong stop for each stretch of the drive, then the best-known places nearest the road, up to nine in all. Places that are closed, private or not open to visitors are removed. Place descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on October 10, 2026. Conditions change, so check the linked sources before you travel.
Route data © OpenStreetMap contributors.