Plan on about 11 h 25 min of driving for the 547-mile (881 km) trip from Chascomús to Rocha, Uruguay, before any stops. You cross from Argentina into Uruguay at about mile 244, 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.”
| Distance | 547 mi (881 km) |
|---|---|
| Time at the wheel, no stops | 11 h 25 min |
| Main roads, in order | RP2 → RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 → I-B |
| Border crossing | about mile 244, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado, Rocha |
| Fuel estimate (car at 25 mpg) | about 21.9 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Crossing from Argentina into Uruguay
The route crosses at about mile 244, 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 Chascomús to Rocha is like
RP2 (55 mi) and RN12 (47 mi) carry about 19% of the 547 miles. The first 244 miles are in Argentina; the last 303 are in Uruguay. It runs through 10 regions: Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado, Rocha. Of the 9 stops listed below, 5 are within a mile of the road.
Road-by-road breakdown: Chascomús to Rocha
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–4 | 4 | Buenos Aires |
| RP2 | 4–59 | 55 | Buenos Aires |
| connecting roads | 59–60 | 1 | Buenos Aires |
| RN1 | 60–76 | 16 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 76–80 | 4 | Ciudad de Buenos Aires |
| AV1-N | 80–85 | 5 | Ciudad de Buenos Aires |
| connecting roads | 85–88 | 3 | Ciudad de Buenos Aires |
| RN9 | 88–127 | 39 | Buenos Aires |
| RP6 | 127–132 | 5 | Buenos Aires |
| RN12 | 132–179 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 179–216 | 37 | Entre Ríos |
| local roads | 216–222 | 6 | Entre Ríos |
| RN136 | 222–241 | 19 | Entre Ríos |
| connecting roads | 241–244 | 3 | Entre Ríos |
| local roads | 244–341 | 97 | Río Negro, Soriano |
| connecting roads | 341–342 | 1 | Soriano |
| local roads | 342–378 | 36 | Colonia, San José |
| connecting roads | 378–381 | 3 | San José |
| local roads | 381–477 | 96 | San José, Canelones, Maldonado |
| I-B | 477–482 | 5 | Maldonado |
| connecting roads | 482–483 | 1 | Maldonado |
| local roads | 483–547 | 64 | Maldonado, Rocha |
- Mile 72 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 88 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 150 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 244 of this route: Entre Ríos → Río Negro (international border)
- Mile 260 of this route: Río Negro → Soriano (region line)
- Mile 342 of this route: Soriano → Colonia (region line)
- Mile 359 of this route: Colonia → San José (region line)
- Mile 403 of this route: San José → Canelones (region line)
- Mile 472 of this route: Canelones → Maldonado (region line)
- Mile 529 of this route: Maldonado → Rocha (region line)
Breaking up the drive: stops between Chascomús and Rocha
- Right off the route (under 1 mile): Museo de la Pasión Boquense (mile 75), Teatro Nacional Cervantes (mile 79), Tierra Santa (mile 83), Cathedral of Mercedes (mile 262), Cathedral of Our Lady of Guadalupe (mile 413)
- Nature and outdoors: Cerro Pan de Azúcar Native Wildlife Breeding Station (mile 483)
- Museums and history: Museo de la Pasión Boquense (mile 75), Palacio de Aguas Corrientes (mile 79), Sarmiento Historical Museum (mile 84), Gualeguaychú Cathedral (mile 221), Cathedral of Mercedes (mile 262), Cathedral of Our Lady of Guadalupe (mile 413)
- With kids: Tierra Santa (mile 83)
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.
Teatro Nacional Cervantes
The Teatro Nacional Cervantes in Buenos Aires is Argentina's national stage, a theater for drama and comedy.
Palacio de Aguas Corrientes
Known as the Palace of Running Waters, the Palacio de Aguas Corrientes is an architecturally significant water pumping station in Buenos Aires and former headquarters of Obras Sanitarias de la Nación.
Tierra Santa
Tierra Santa is a religious theme park in the city of Buenos Aires, in Argentina.
Sarmiento Historical Museum
In the Belgrano neighborhood of Buenos Aires, the Sarmiento Historical Museum covers the Generation of '80 and the life of President Domingo Faustino Sarmiento, with sections on Nicolás Avellaneda and the 1880 federalization.
Gualeguaychú Cathedral
In Gualeguaychú, Argentina, the Roman Catholic diocese has its cathedral church at St. Joseph's, also known as Gualeguaychú Cathedral.
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.
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.
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.
Once you reach Rocha
Teatro 25 de Mayo
Rocha's Teatro 25 de Mayo opened in 1910 as an Italian-style theater in the eclectic style, with room for about 400 people. Now a cultural complex, it is a stop on the city's self-guided heritage walk.
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.
More drives to Rocha
- Montevideo to Rocha
- Tacuarembó to Rocha
- Salto to Rocha
- Rivera to Rocha
- Buenos Aires to Rocha, Uruguay
- Rosario, Argentina to Rocha, Uruguay
More drives from Chascomús
- Chascomús to Tigre
- Chascomús to San Antonio de Areco
- Chascomús to Arrecifes
- Chascomús to Martínez
- Chascomús to Mercedes, Argentina
- Chascomús to Artigas, Uruguay
Frequently asked questions
How long does it take to drive from Chascomús to Rocha, Uruguay?
About 11 h 25 min of driving without stops, over 547 miles.
What is the driving distance from Chascomús to Rocha, Uruguay?
About 547 miles (881 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 Chascomús to Rocha drive cross the border?
At about mile 244, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Chascomús 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 Chascomús to Rocha, 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 Chascomús to Rocha?
In order: RP2, RN1, AV1-N, RN9, RP6, 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 Chascomús to Rocha?
Closest to the road: Teatro Nacional Cervantes (theater, mile 79, 0.6 mi from the route); Tierra Santa (theme park, mile 83, 0.4 mi from the route); Cathedral of Our Lady of Guadalupe (cathedral, mile 413, 0.1 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.