The Wayro route from Mar del Plata to Carmelo, Uruguay is 505 miles (813 km), about 10 h 8 min of driving without stops. You cross from Argentina into Uruguay at about mile 421, 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.”
| Total distance | 505 mi (813 km) |
|---|---|
| Time at the wheel, no stops | 10 h 8 min |
| Main roads, in order | RP2 → RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 |
| Border crossing | about mile 421, 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 20.2 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 421, 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.
What the drive from Mar del Plata to Carmelo is like
RP2 (234 mi) and RN12 (48 mi) carry about 56% of the 505 miles. The first 421 miles are in Argentina; the last 84 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, 5 are within a mile of the road.
Which roads connect Mar del Plata and Carmelo
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–2 | 2 | Buenos Aires |
| RP2 | 2–236 | 234 | Buenos Aires |
| connecting roads | 236–237 | 1 | Buenos Aires |
| RN1 | 237–254 | 17 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 254–257 | 3 | Ciudad de Buenos Aires |
| AV1-N | 257–263 | 6 | Ciudad de Buenos Aires |
| connecting roads | 263–265 | 2 | Ciudad de Buenos Aires |
| RN9 | 265–304 | 39 | Ciudad de Buenos Aires, Buenos Aires |
| connecting roads | 304–305 | 1 | Buenos Aires |
| RP6 | 305–309 | 4 | Buenos Aires |
| RN12 | 309–357 | 48 | Buenos Aires, Entre Ríos |
| RN14 | 357–393 | 36 | Entre Ríos |
| local roads | 393–400 | 7 | Entre Ríos |
| RN136 | 400–419 | 19 | Entre Ríos |
| connecting roads | 419–421 | 2 | Entre Ríos |
| local roads | 421–440 | 19 | Río Negro, Soriano |
| connecting roads | 440–442 | 2 | Soriano |
| local roads | 442–505 | 63 | Soriano, Colonia |
- Mile 250 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 266 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 327 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 421 of this route: Entre Ríos → Río Negro (international border)
- Mile 437 of this route: Río Negro → Soriano (region line)
- Mile 492 of this route: Soriano → Colonia (region line)
Breaking up the drive: stops between Mar del Plata and Carmelo
- Right off the route (under 1 mile): Museo del Cine Pablo Ducrós Hicken (mile 254), Museo de Informática de la República Argentina (mile 257), Tierra Santa (mile 262), Japanese Garden, Belén de Escobar (mile 288), Museo Municipal Profesor Roselli (mile 492)
- Nature and outdoors: Japanese Garden, Belén de Escobar (mile 288), Agraciada Beach (mile 488)
- Museums and history: Museo del Cine Pablo Ducrós Hicken (mile 254), Museo de Informática de la República Argentina (mile 257), Museo de Arte Español Enrique Larreta (mile 262), Museo Municipal Profesor Roselli (mile 492)
- With kids: Tierra Santa (mile 262)
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.
Museo de Informática de la República Argentina
Founded in 2010 and run by the ICATEC Foundation, this Buenos Aires museum preserves Argentina's computing heritage and the memory of the country's computing pioneers.
San José Observatory
The San José Observatory is an amateur astronomy observatory in Buenos Aires, founded in 1913 in a structure first built in 1870.
Tierra Santa
Tierra Santa is a religious theme park in the city of Buenos Aires, in Argentina.
Museo de Arte Español Enrique Larreta
In Buenos Aires's Belgrano neighborhood, the Enrique Larreta Museum is devoted to Spanish art.
Japanese Garden, Belén de Escobar
Landscape engineer Yasuo Inomata designed this Japanese garden in Belén de Escobar in 1969, and the local Japanese community donated it to the city. Red, white and spotted koi swim in its 1,000-square-meter pond.
Frigorífico Anglo del Uruguay
Liebig exported meat extract and corned beef from this spot on the Uruguay River at Fray Bentos starting in 1865. In 1924, the Anglo plant began shipping frozen meat from the same site.
Agraciada Beach
On the eastern bank of the Uruguay River in Soriano department, Agraciada Beach is a historic beach area facing Argentina's Entre Ríos province.
Museo Municipal Profesor Roselli
Nueva Palmira's municipal museum, also known as the Museo Roselli, is named for its first director, Professor Francisco Lucas Rosselli.
Arriving in Carmelo
Teatro Uamá
Teatro Uamá is a theater in the city of Carmelo, in Uruguay's Colonia department, regarded as the town's leading cultural institution.
Museo del Carmen
Facing Plaza Artigas in Carmelo, the Archivo y Museo del Carmen belongs to the local Carmelo parish and holds religious and historical collections.
More drives to Carmelo
- Paysandú to Carmelo
- Salto to Carmelo
- Tacuarembó to Carmelo
- Rivera to Carmelo
- Artigas to Carmelo
- Minas to Carmelo
More drives from Mar del Plata
- Mar del Plata to Viedma
- Mar del Plata to Adrogué
- Mar del Plata to Tigre
- Mar del Plata to San Antonio de Areco
- Mar del Plata to Arrecifes
- Mar del Plata to Pergamino
Continue Your Adventure
Frequently asked questions
How long is the drive from Mar del Plata to Carmelo, Uruguay?
About 10 h 8 min of driving without stops, over 505 miles.
What is the driving distance from Mar del Plata to Carmelo, Uruguay?
About 505 miles (813 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 Mar del Plata to Carmelo drive cross the border?
At about mile 421, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Mar del 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 Mar del Plata to Carmelo 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.
What roads does the drive from Mar del Plata to Carmelo use?
In order: RP2, RN1, AV1-N, RN9, RP6, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from Mar del Plata to Carmelo?
Closest to the road: Museo del Cine Pablo Ducrós Hicken (film museum, mile 254, 0.2 mi from the route); Museo de Informática de la República Argentina (computer museum, mile 257, 0.3 mi from the route); Tierra Santa (theme park, mile 262, 0.3 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.