Nueva Helvecia to Cariló, Argentina is about 503 road miles (809 km): roughly 10 h 19 min at the wheel if you don't stop. You cross from Uruguay into Argentina at about mile 112, at the Gualeguaychú–Fray Bentos bridge.
Full advisory: Uruguay, Argentina. Advisory issued: Uruguay July 28, 2026; Argentina July 10, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Uruguay: “Illumination, pavement markings, and road surfaces for secondary roads can be poor.”
- Argentina: “Drivers in Argentina tend to be aggressive, especially in Buenos Aires, and often ignore traffic regulations.”
| Total distance | 503 mi (809 km) |
|---|---|
| Driving time, no stops | 10 h 19 min |
| Main roads, in order | RN136 → RN14 → RN12 → RP6 → RN9 → AV1-N → RN1 → RNA004 → RP2 → RP63 → RP11 → RP56 → RP74 |
| Border crossing | about mile 112, Uruguay → Argentina (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Colonia, Soriano, Río Negro, Entre Ríos, Buenos Aires, Ciudad de Buenos Aires |
| Fuel estimate (car at 25 mpg) | about 20.1 gal; actual use varies by vehicle and traffic |
| Stops listed below | 8 |
Border crossing: what to bring for Argentina
The route crosses at about mile 112, at the Gualeguaychú–Fray Bentos bridge, from Río Negro into Entre Ríos. Plan on two checks on each side: immigration for your passport and customs for the car.
| 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. |
| 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. |
| The car, entering Argentina | Argentine customs (ARCA) registers the car's temporary entry. Bring the title or registration, liability insurance valid in Argentina and, if you don't own the car, a power of attorney signed before a notary. A rental car needs the rental company's MERCOSUR circulation authorization (ACM), and the company must be registered with Argentine customs. |
| 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, Argentina (updated July 16, 2026); U.S. State Department, Uruguay (updated August 13, 2026); ARCA (Argentine customs). Checked October 10, 2026; rules change, so confirm before you go.
Driving Nueva Helvecia to Cariló: the shape of the trip
RP2 (102 mi) and RN12 (47 mi) carry about 30% of the 503 miles. The first 112 miles are in Uruguay; the last 391 are in Argentina. It runs through 6 regions: Colonia, Soriano, Río Negro, Entre Ríos, Buenos Aires, Ciudad de Buenos Aires. Of the 8 stops listed below, 6 are within a mile of the road.
The route from Nueva Helvecia to Cariló, road by road
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–111 | 111 | Colonia, Soriano, Río Negro |
| connecting roads | 111–113 | 2 | Río Negro, Entre Ríos |
| RN136 | 113–132 | 19 | Entre Ríos |
| local roads | 132–139 | 7 | Entre Ríos |
| RN14 | 139–175 | 36 | Entre Ríos |
| RN12 | 175–222 | 47 | Entre Ríos, Buenos Aires |
| RP6 | 222–227 | 5 | Buenos Aires |
| connecting roads | 227–228 | 1 | Buenos Aires |
| RN9 | 228–267 | 39 | Buenos Aires |
| connecting roads | 267–270 | 3 | Buenos Aires, Ciudad de Buenos Aires |
| AV1-N | 270–276 | 6 | Ciudad de Buenos Aires |
| connecting roads | 276–279 | 3 | Ciudad de Buenos Aires |
| RN1 | 279–296 | 17 | Ciudad de Buenos Aires, Buenos Aires |
| RNA004 | 296–306 | 10 | Buenos Aires |
| RP2 | 306–408 | 102 | Buenos Aires |
| connecting roads | 408–409 | 1 | Buenos Aires |
| RP63 | 409–427 | 18 | Buenos Aires |
| RP11 | 427–442 | 15 | Buenos Aires |
| RP56 | 442–481 | 39 | Buenos Aires |
| RP74 | 481–496 | 15 | Buenos Aires |
| connecting roads | 496–500 | 4 | Buenos Aires |
| local roads | 500–503 | 3 | Buenos Aires |
- Mile 31 of this route: Colonia → Soriano (region line)
- Mile 95 of this route: Soriano → Río Negro (region line)
- Mile 112 of this route: Río Negro → Entre Ríos (international border)
- Mile 206 of this route: Entre Ríos → Buenos Aires (region line)
- Mile 268 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 284 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
Where to stop on the way to Cariló
- Right off the route (under 1 mile): Cathedral of Mercedes (mile 93), Parque de la Memoria (mile 272), Monument to General Carlos M. de Alvear (mile 275), Museo del Holocausto (mile 277), Ernesto de la Cárcova Museum of Reproductions and Comparative Sculpture (mile 280), Museo del Cine Pablo Ducrós Hicken (mile 280)
- Nature and outdoors: Parque de la Memoria (mile 272)
- Museums and history: Cathedral of Mercedes (mile 93), Gualeguaychú Cathedral (mile 134), Museo Histórico Cornelio de Saavedra (mile 268), Museo del Holocausto (mile 277), Ernesto de la Cárcova Museum of Reproductions and Comparative Sculpture (mile 280), Museo del Cine Pablo Ducrós Hicken (mile 280)
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.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, is the mother church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
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.
Parque de la Memoria
Facing the Río de la Plata at the northern end of Buenos Aires' Belgrano section, Parque de la Memoria is a public memorial to the victims of Argentina's 1976–1983 military regime.
Monument to General Carlos M. de Alvear
Raised in honor of Carlos María de Alvear, this public sculpture monument stands on Plaza Julio de Caro in the Recoleta neighborhood of Buenos Aires.
Museo del Holocausto
Dedicated to keeping the memory of the Shoah alive, the Museo del Holocausto in Buenos Aires holds documents and personal objects donated by survivors who emigrated from Europe.
Ernesto de la Cárcova Museum of Reproductions and Comparative Sculpture
Run by the National University of Arts, this museum of reproductions and comparative sculpture is in the Puerto Madero area of Buenos Aires.
Museo del Cine Pablo Ducrós Hicken
Established in 1971, Museo del Cine Pablo Ducrós Hicken in Buenos Aires traces Argentine cinema through about 90,000 film reels plus photos, posters, scripts, costumes and film equipment.
More drives to Cariló
- Necochea to Cariló
- Balneario El Cóndor to Cariló
- Tigre to Cariló
- Arrecifes to Cariló
- Martínez to Cariló
- San Nicolás de los Arroyos to Cariló
More drives from Nueva Helvecia
- Nueva Helvecia to Fray Marcos
- Nueva Helvecia to Alejandro Gallinal
- Nueva Helvecia to Barra de Valizas
- Nueva Helvecia to La Paloma
- Nueva Helvecia to Punta del Diablo
- Nueva Helvecia to Martínez, Argentina
Frequently asked questions
How long does it take to drive from Nueva Helvecia to Cariló, Argentina?
About 10 h 19 min of driving without stops, over 503 miles.
How far is Cariló, Argentina from Nueva Helvecia by car?
About 503 miles (809 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 Nueva Helvecia to Cariló drive cross the border?
At about mile 112, from Uruguay into Argentina, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Nueva Helvecia into Argentina?
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. A valid U.S. license usually works; an International Driving Permit is recommended. (U.S. State Department, updated July 16, 2026.)
What does the U.S. travel advisory say about the Nueva Helvecia to Cariló drive?
The U.S. State Department rates Uruguay Level 2: Exercise Increased Caution; Argentina Level 1: Exercise Normal Precautions. Read the full advisory before you go.
What roads does the drive from Nueva Helvecia to Cariló use?
In order: RN136, RN14, RN12, RP6, RN9, AV1-N, RN1, RNA004, RP2, RP63, RP11, RP56 and RP74. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from Nueva Helvecia to Cariló?
Closest to the road: Monument to General Carlos M. de Alvear (sculpture, mile 275, 0.4 mi from the route); Museo del Holocausto (history museum, mile 277, 0.4 mi from the route); Museo del Cine Pablo Ducrós Hicken (film museum, mile 280, 0.2 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.