The Wayro route from La Plata to Nueva Helvecia, Uruguay is 311 miles (501 km), about 6 h 46 min of driving without stops. You cross from Argentina into Uruguay at about mile 201, 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: “Traffic fatalities are high in Uruguay.”
| Distance | 311 mi (501 km) |
|---|---|
| Drive time without stops | 6 h 46 min |
| Main roads, in order | RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 |
| Border crossing | about mile 201, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia |
| Fuel estimate (car at 25 mpg) | about 12.5 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
The border on the way to Nueva Helvecia
The route crosses at about mile 201, 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 La Plata to Nueva Helvecia drive plays out
RN12 (47 mi) and RN9 (39 mi) carry about 28% of the 311 miles. The first 201 miles are in Argentina; the last 110 are in Uruguay. It runs through 6 regions: Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia. Of the 9 stops listed below, 3 are within a mile of the road.
La Plata to Nueva Helvecia: the road sequence
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–3 | 3 | Buenos Aires |
| RN1 | 3–33 | 30 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 33–37 | 4 | Ciudad de Buenos Aires |
| AV1-N | 37–42 | 5 | Ciudad de Buenos Aires |
| connecting roads | 42–45 | 3 | Ciudad de Buenos Aires |
| RN9 | 45–84 | 39 | Buenos Aires |
| connecting roads | 84–85 | 1 | Buenos Aires |
| RP6 | 85–89 | 4 | Buenos Aires |
| RN12 | 89–136 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 136–173 | 37 | Entre Ríos |
| local roads | 173–179 | 6 | Entre Ríos |
| RN136 | 179–198 | 19 | Entre Ríos |
| connecting roads | 198–201 | 3 | Entre Ríos |
| local roads | 201–311 | 110 | Río Negro, Soriano, Colonia |
- Mile 29 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 45 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 107 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 201 of this route: Entre Ríos → Río Negro (international border)
- Mile 217 of this route: Río Negro → Soriano (region line)
- Mile 281 of this route: Soriano → Colonia (region line)
Breaking up the drive: stops between La Plata and Nueva Helvecia
- Right off the route (under 1 mile): Museo de la Pasión Boquense (mile 32), ARA Uruguay (mile 35), Cathedral of Mercedes (mile 219)
- Nature and outdoors: Buenos Aires Botanical Garden (mile 39), Parque Natural Municipal Ribera Norte (mile 48)
- Museums and history: Museo de la Pasión Boquense (mile 32), ARA Uruguay (mile 35), Centro Cultural General San Martín (mile 36), Museo Nacional del Hombre (mile 40), Museo Histórico Cornelio de Saavedra (mile 45), Gualeguaychú Cathedral (mile 178), Cathedral of Mercedes (mile 219)
Museo de la Pasión Boquense
Football fans can dig into the history and personalities of Club Atlético Boca Juniors at the Museo de la Pasión Boquense, a themed soccer museum devoted to the club.
ARA Uruguay
Berthed at Puerto Madero in Buenos Aires, the corvette ARA Uruguay is a museum ship built in England and serving in the Argentine navy from 1874 until 1926.
Centro Cultural General San Martín
Run by the city government near Corrientes Avenue, the General San Martín Cultural Centre in Buenos Aires hosts a mix of cultural and artistic events.
Buenos Aires Botanical Garden
In the Palermo neighborhood of Buenos Aires, the Buenos Aires Botanical Garden fills a triangular plot bounded by Santa Fe Avenue, Las Heras Avenue and República Árabe Siria Street.
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.
Parque Natural Municipal Ribera Norte
On the Río de la Plata shore in Acassuso, San Isidro, Ribera Norte is a municipal nature park protecting green space within greater Buenos Aires.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, is the mother church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
Cathedral of Mercedes
Since 1960, the Diocese of Mercedes has had its seat at the Cathedral of Our Lady of Mercy, the main Catholic church in this Uruguayan city.
More drives to Nueva Helvecia
- Tacuarembó to Nueva Helvecia
- Salto to Nueva Helvecia
- Rivera to Nueva Helvecia
- Artigas to Nueva Helvecia
- Minas to Nueva Helvecia
- Maldonado to Nueva Helvecia
More drives from La Plata
- La Plata to Tigre
- La Plata to Luján
- La Plata to San Antonio de Areco
- La Plata to Arrecifes
- La Plata to Pergamino
- La Plata to Martínez
Continue Your Adventure
Frequently asked questions
How long is the drive from La Plata to Nueva Helvecia, Uruguay?
About 6 h 46 min of driving without stops, over 311 miles.
How far is Nueva Helvecia, Uruguay from La Plata by car?
About 311 miles (501 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 La Plata to Nueva Helvecia drive cross the border?
At about mile 201, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from La Plata 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.)
What does the U.S. travel advisory say about the La Plata to Nueva Helvecia drive?
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 La Plata to Nueva Helvecia?
In order: RN1, AV1-N, RN9, RP6, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
What are good stops between La Plata and Nueva Helvecia?
Closest to the road: Museo de la Pasión Boquense (sports museum, mile 32, 0.6 mi from the route); ARA Uruguay (museum ship, mile 35, 0.1 mi from the route); Cathedral of Mercedes (cathedral, mile 219, 0.7 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.