The Wayro route from Arrecifes to Treinta y Tres, Uruguay is 536 miles (862 km), about 11 h 11 min of driving without stops. 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: “If you are in an accident involving injury, stay in place until a police officer arrives.”
| Total distance | 536 mi (862 km) |
|---|---|
| Time at the wheel, no stops | 11 h 11 min |
| Main roads, in order | RN8 → RN193 → RN12 → RN14 → RN136 |
| 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, Lavalleja, Treinta y Tres |
| Fuel estimate (car at 25 mpg) | about 21.4 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
The border on the way to Treinta y Tres
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.
Driving Arrecifes to Treinta y Tres: the shape of the trip
RN12 (49 mi) and RN8 (46 mi) carry about 18% of the 536 miles. The first 184 miles are in Argentina; the last 352 are in Uruguay. It runs through 9 regions: Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Lavalleja, Treinta y Tres. Of the 9 stops listed below, 4 are within a mile of the road.
Road-by-road breakdown: Arrecifes to Treinta y Tres
| 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 | 321–536 | 215 | San José, Canelones, Lavalleja, Treinta y Tres |
- 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 408 of this route: Canelones → Lavalleja (region line)
- Mile 518 of this route: Lavalleja → Treinta y Tres (region line)
Breaking up the drive: stops between Arrecifes and Treinta y Tres
- Right off the route (under 1 mile): Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (mile 39), Cathedral of Mercedes (mile 201), Cathedral of Our Lady of Guadalupe (mile 352), Cathedral of Minas (mile 432)
- Nature and outdoors: Ciervo de los Pantanos National Park (mile 72), Parque nacional Arequita (mile 433), Salto del Penitente (mile 443)
- Museums and history: Parque Criollo y Museo Gauchesco Ricardo Gu͏̈iraldes (mile 39), Gualeguaychú Cathedral (mile 161), Cathedral of Mercedes (mile 201), Cathedral of Our Lady of Guadalupe (mile 352), Iglesia de Cristo Obrero y Nuestra Señora de Lourdes (mile 388), Cathedral of Minas (mile 432)
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
About 2,500 hectares of wetlands in Campana, Buenos Aires province, are protected as Ciervo de los Pantanos National Park. It's a Ramsar Site and home to the marsh deer and plenty of waterbirds.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, serves as the cathedral church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
Cathedral of Mercedes
Dedicated to Our Lady of Mercy, this cathedral is the main Catholic church of Mercedes, Uruguay, and has been the seat of the Diocese of Mercedes since 1960.
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
Wavy brick walls and a rippling brick roof define this church in Estación Atlántida, along with an openwork brick bell tower and a baptistery set underground. Engineer Eladio Dieste designed it, and it opened in 1960.
Cathedral of Minas
Minas's main Catholic church, the Cathedral of the Immaculate Conception served as the seat of the Diocese of Minas from 1960 to 2020.
Parque nacional Arequita
Arequita National Park is a protected natural area in Lavalleja department, southeastern Uruguay, known for Cerro Arequita, its related rock formations and its biodiversity.
Salto del Penitente
In Treinta y Tres itself
Museo Agustín Araújo
Treinta y Tres's departmental fine arts museum, the Museo Agustín Araújo is a public museum in the city of Treinta y Tres, Uruguay.
More drives to Treinta y Tres
- Montevideo to Treinta y Tres
- Rivera to Treinta y Tres
- Colonia del Sacramento to Treinta y Tres
- Salto to Treinta y Tres
- Fray Bentos to Treinta y Tres
- Buenos Aires to Treinta y Tres, Uruguay
More drives from Arrecifes
- Arrecifes to Magdalena
- Arrecifes to Ayacucho, Argentina
- Arrecifes to Cariló
- Arrecifes to Capilla del Monte
- Arrecifes to Río Branco, Uruguay
- Arrecifes to Nueva Helvecia, Uruguay
Continue Your Adventure
Frequently asked questions
How long does it take to drive from Arrecifes to Treinta y Tres, Uruguay?
About 11 h 11 min of driving without stops, over 536 miles.
How far is Treinta y Tres, Uruguay from Arrecifes by car?
About 536 miles (862 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 Treinta y Tres 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 Treinta y Tres, 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.
What roads does the drive from Arrecifes to Treinta y Tres use?
In order: RN8, RN193, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
What are good stops between Arrecifes and Treinta y Tres?
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); Cathedral of Minas (cathedral, mile 432, 0.6 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.