Arrecifes to Barra de Valizas, Uruguay is about 534 road miles (860 km): roughly 11 h 26 min at the wheel if you don't stop. You cross from Argentina into Uruguay at about mile 184, 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: “Illumination, pavement markings, and road surfaces for secondary roads can be poor.”
| Distance | 534 mi (860 km) |
|---|---|
| Drive time without stops | 11 h 26 min |
| Main roads, in order | RN8 → RN193 → RN12 → RN14 → RN136 → I-B |
| Border crossing | about mile 184, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado, Rocha |
| Fuel estimate (car at 25 mpg) | about 21.4 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Border crossing: what to bring for Uruguay
The route crosses at about mile 184, 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.
The Arrecifes–Barra de Valizas drive in a few lines
RN12 (49 mi) and RN8 (46 mi) carry about 18% of the 534 miles. The first 184 miles are in Argentina; the last 350 are in Uruguay. It runs through 9 regions: Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado, Rocha. Of the 9 stops listed below, 3 are within a mile of the road.
Which roads connect Arrecifes and Barra de Valizas
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–4 | 4 | Buenos Aires |
| RN8 | 4–50 | 46 | Buenos Aires |
| RN193 | 50–70 | 20 | Buenos Aires |
| RN12 | 70–119 | 49 | Buenos Aires, Entre Ríos |
| RN14 | 119–155 | 36 | Entre Ríos |
| local roads | 155–162 | 7 | Entre Ríos |
| RN136 | 162–181 | 19 | Entre Ríos |
| connecting roads | 181–184 | 3 | Entre Ríos |
| local roads | 184–318 | 134 | Río Negro, Soriano, Colonia, San José |
| connecting roads | 318–321 | 3 | San José |
| local roads | 321–417 | 96 | San José, Canelones, Maldonado |
| I-B | 417–422 | 5 | Maldonado |
| connecting roads | 422–423 | 1 | Maldonado |
| local roads | 423–534 | 111 | Maldonado, Rocha |
- Mile 89 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 184 of this route: Entre Ríos → Río Negro (international border)
- Mile 200 of this route: Río Negro → Soriano (region line)
- Mile 281 of this route: Soriano → Colonia (region line)
- Mile 299 of this route: Colonia → San José (region line)
- Mile 342 of this route: San José → Canelones (region line)
- Mile 411 of this route: Canelones → Maldonado (region line)
- Mile 469 of this route: Maldonado → Rocha (region line)
Where to stop on the way to Barra de Valizas
- Right off the route (under 1 mile): Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (mile 39), Cathedral of Our Lady of Guadalupe (mile 352), Observatorio Astronómico del CURE (mile 485)
- Nature and outdoors: Ciervo de los Pantanos National Park (mile 72), Cerro Pan de Azúcar Native Wildlife Breeding Station (mile 423), La Sirena Beach (mile 528)
- Museums and history: Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (mile 39), Gualeguaychú Cathedral (mile 161), Calera Real del Dacá (mile 201), Cathedral of Our Lady of Guadalupe (mile 352), Iglesia de Cristo Obrero y Nuestra Señora de Lourdes (mile 388)
Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes
In San Antonio de Areco, Buenos Aires province, the Museo Gauchesco Ricardo Güiraldes spreads ten exhibit rooms across the 97-hectare Parque Criollo, opened in 1938, and presents Argentina's past, especially that of Buenos Aires province.
Ciervo de los Pantanos National Park
Ciervo de los Pantanos National Park (Parque Nacional Ciervo de los Pantanos) protects about 2,500 hectares of wetlands in Campana, Buenos Aires province, home to the marsh deer that gives it its name and to abundant waterbirds. It is a Ramsar Site.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, is the mother church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
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.
Cathedral of Our Lady of Guadalupe
Construction of Canelones' Cathedral of Our Lady of Guadalupe began in 1816; the church became a cathedral in 1961 and Uruguay's national shrine of Our Lady of Guadalupe in 2020.
Iglesia de Cristo Obrero y Nuestra Señora de Lourdes
Since 2021, UNESCO has counted Eladio Dieste's Church of Christ the Worker among its World Heritage Sites. The engineer's brick church in Estación Atlántida was inaugurated in 1960 and is known for its undulating walls and roof.
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.
Observatorio Astronómico del CURE
Run by the University of the Republic's eastern campus (CURE), this small observatory in Rocha opened in 2016 and uses a 30 cm reflector telescope under a motorized dome for teaching, research and public outreach.
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 Arrecifes
- Arrecifes to Magdalena
- Arrecifes to Ayacucho, Argentina
- Arrecifes to Cariló
- Arrecifes to Capilla del Monte
- Arrecifes to Treinta y Tres, Uruguay
- Arrecifes to Río Branco, Uruguay
Frequently asked questions
How long is the drive from Arrecifes to Barra de Valizas, Uruguay?
About 11 h 26 min of driving without stops, over 534 miles.
What is the driving distance from Arrecifes to Barra de Valizas, Uruguay?
About 534 miles (860 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 Arrecifes to Barra de Valizas drive cross the border?
At about mile 184, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Arrecifes 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 Arrecifes 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 Arrecifes to Barra de Valizas?
In order: RN8, RN193, RN12, RN14, RN136 and I-B. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from Arrecifes to Barra de Valizas?
Closest to the road: Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (museum, mile 39, 0.7 mi from the route); Cathedral of Our Lady of Guadalupe (cathedral, mile 352, 0.1 mi from the route); Observatorio Astronómico del CURE (astronomical observatory, mile 485, 0.4 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.