Plan on about 5 h 9 min of driving for the 234-mile (376 km) trip from Gualeguaychú to Atlántida, Uruguay, before any stops. You cross from Argentina into Uruguay at about mile 23, 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 should prepare in advance when taking long road trips and make sure to have adequate insurance coverage.”
- Uruguay: “Several of the main highways are particularly accident-ridden.”
| Total distance | 234 mi (376 km) |
|---|---|
| Drive time without stops | 5 h 9 min |
| Main roads, in order | RN136 |
| Border crossing | about mile 23, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones |
| Fuel estimate (car at 25 mpg) | about 9.3 gal; actual use varies by vehicle and traffic |
| Stops listed below | 5 |
Crossing from Argentina into Uruguay
The route crosses at about mile 23, 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 Gualeguaychú to Atlántida drive plays out
RN136 (20 mi) carries about 9% of the 234 miles. The first 23 miles are in Argentina; the last 211 are in Uruguay. It runs through 6 regions: Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones. Of the 5 stops listed below, 2 are within a mile of the road.
Which roads connect Gualeguaychú and Atlántida
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–1 | 1 | Entre Ríos |
| RN136 | 1–21 | 20 | Entre Ríos |
| connecting roads | 21–23 | 2 | Entre Ríos |
| local roads | 23–120 | 97 | Río Negro, Soriano |
| connecting roads | 120–121 | 1 | Soriano |
| local roads | 121–157 | 36 | Colonia, San José |
| connecting roads | 157–160 | 3 | San José |
| local roads | 160–234 | 74 | San José, Canelones |
- Mile 23 of this route: Entre Ríos → Río Negro (international border)
- Mile 39 of this route: Río Negro → Soriano (region line)
- Mile 121 of this route: Soriano → Colonia (region line)
- Mile 138 of this route: Colonia → San José (region line)
- Mile 181 of this route: San José → Canelones (region line)
What to see on the way from Gualeguaychú to Atlántida
- Right off the route (under 1 mile): Cathedral of San José de Mayo (mile 158), Cathedral of Our Lady of Guadalupe (mile 192)
- Museums and history: Alejandro Berro Paleontology Museum (mile 38), Calera Real del Dacá (mile 40), Cathedral of San José de Mayo (mile 158), Cathedral of Our Lady of Guadalupe (mile 192)
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.
Alejandro Berro Paleontology Museum
In a 19th-century building in Mercedes' Parque Castillo Mauá, this paleontology museum opened in 1946 around the collection of naturalist Alejandro Berro; a well-preserved glyptodon shell found on a nearby riverbank is a highlight.
Calera Real del Dacá
On the eastern edge of Mercedes beside the Dacá stream, the ruins of the Calera Real lime works date to 1722 and are considered the region's first industrial site; recent works added visitor circuits, lighting and interpretive signs.
Cathedral of San José de Mayo
The main Catholic church of San José de Mayo, the Cathedral Basilica of St. Joseph has been the diocesan seat since 1955, a minor basilica since 1957 and Uruguay's national shrine of Saint Joseph.
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.
Arriving in Atlántida
Iglesia de Cristo Obrero y Nuestra Señora de Lourdes
Since 2021, UNESCO has counted Eladio Dieste's Church of Christ the Worker among its World Heritage Sites. The engineer's brick church in Estación Atlántida was inaugurated in 1960 and is known for its undulating walls and roof.
Laguna del Cisne
Near Salinas in Canelones, Laguna del Cisne is a subtropical lagoon of about 1.8 km², fed by a watershed of some 50 km², that has supplied drinking water to the Costa de Oro area since 1970.
More drives to Atlántida
- Paysandú to Atlántida
- Tacuarembó to Atlántida
- Rivera to Atlántida
- Artigas to Atlántida
- Bella Unión to Atlántida
- Durazno to Atlántida
More drives from Gualeguaychú
- Gualeguaychú to Adrogué
- Gualeguaychú to Berisso
- Gualeguaychú to Magdalena
- Gualeguaychú to Chascomús
- Gualeguaychú to Cariló
- Gualeguaychú to Villa Gesell
Frequently asked questions
How long is the drive from Gualeguaychú to Atlántida, Uruguay?
About 5 h 9 min of driving without stops, over 234 miles.
What is the driving distance from Gualeguaychú to Atlántida, Uruguay?
About 234 miles (376 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 Gualeguaychú to Atlántida drive cross the border?
At about mile 23, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Gualeguaychú 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 Gualeguaychú to Atlántida, 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 are good stops between Gualeguaychú and Atlántida?
Closest to the road: Calera Real del Dacá (ruins, mile 40, 2 mi from the route); Cathedral of San José de Mayo (cathedral, mile 158, 0.9 mi from the route); Cathedral of Our Lady of Guadalupe (cathedral, mile 192, 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.