Plan on about 9 h 3 min of driving for the 421-mile (678 km) trip from San Antonio Oeste to Colonia Suiza, before any stops.
Full advisory: Argentina. Advisory issued: Argentina July 10, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Gas stations are often far apart and not always easily identified from the main roadway.”
| Distance by road | 421 mi (678 km) |
|---|---|
| Driving time, no stops | 9 h 3 min |
| Main roads, in order | RNA026 → RN3 → RN23 → RN40 → RP237 → RP79 |
| Provinces on the route | Río Negro |
| Fuel estimate (car at 25 mpg) | about 16.9 gal; actual use varies by vehicle and traffic |
| Stops listed below | 4 |
What the drive from San Antonio Oeste to Colonia Suiza is like
RN23 (372 mi) and RN3 (22 mi) carry about 94% of the 421 miles. Of the 4 stops listed below, 3 are within a mile of the road.
San Antonio Oeste to Colonia Suiza: the road sequence
| Road | Route miles (from–to) | Length, mi | Province |
|---|---|---|---|
| RNA026 | 0–4 | 4 | Río Negro |
| RN3 | 4–26 | 22 | Río Negro |
| RN23 | 26–398 | 372 | Río Negro |
| RN40 | 398–403 | 5 | Río Negro |
| RP237 | 403–414 | 11 | Río Negro |
| RP79 | 414–421 | 7 | Río Negro |
Where to stop on the way to Colonia Suiza
- Right off the route (under 1 mile): Cathedral of Our Lady of Nahuel Huapi (mile 408), Francisco Moreno Museum of Patagonia (mile 408), Museo de Tropas de Montaña (mile 414)
- Nature and outdoors: Área natural protegida Bahía de San Antonio (mile 8)
- Museums and history: Cathedral of Our Lady of Nahuel Huapi (mile 408), Francisco Moreno Museum of Patagonia (mile 408), Museo de Tropas de Montaña (mile 414)
Área natural protegida Bahía de San Antonio
On the San Matías Gulf in Argentina's Río Negro province, the Bahía de San Antonio protected area was set up in 1993 to safeguard a seabird breeding zone and a stopover for migratory birds.
Cathedral of Our Lady of Nahuel Huapi
Close to Nahuel Huapi Lake, the Cathedral of Our Lady of Nahuel Huapi is the main Catholic cathedral of San Carlos de Bariloche, set amid gardens on a large plot.
Francisco Moreno Museum of Patagonia
Set in the Civic Center of Bariloche, the Francisco P. Moreno Museum of Patagonia covers natural history and cultural anthropology.
Museo de Tropas de Montaña
Founded in 1975, Museo de Tropas de Montaña is an Argentine Army military museum in Bariloche, housed within the garrison at the Military Mountain School.
Arriving in Colonia Suiza
Lago Moreno
Lago Moreno is a lake of glacial origin in the Bariloche department of Río Negro Province, Argentina.
Parque municipal Llao Llao
Located in the Bariloche department of Río Negro, the Llao Llao municipal park protects the area's natural landscape and the region's genetic diversity.
Laguna Negra
Inside Nahuel Huapi National Park, high in the Andes, Laguna Negra is a lake of about 13 hectares that lies under a thick layer of snow in winter.
More drives to Colonia Suiza
- San Martín de los Andes to Colonia Suiza
- Villa El Chocón to Colonia Suiza
- Neuquén to Colonia Suiza
- Viedma to Colonia Suiza
- Rawson to Colonia Suiza
- Esquel to Colonia Suiza
From San Antonio Oeste to other places in Argentina
Frequently asked questions
How long does it take to drive from San Antonio Oeste to Colonia Suiza?
About 9 h 3 min of driving without stops, over 421 miles.
How far is Colonia Suiza from San Antonio Oeste by car?
About 421 miles (678 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.
Is it safe to drive from San Antonio Oeste to Colonia Suiza?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions. Read the full advisory before you go.
What roads does the drive from San Antonio Oeste to Colonia Suiza use?
In order: RNA026, RN3, RN23, RN40, RP237 and RP79. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from San Antonio Oeste to Colonia Suiza?
Closest to the road: Cathedral of Our Lady of Nahuel Huapi (cathedral, mile 408, 0.2 mi from the route); Francisco Moreno Museum of Patagonia (museum, mile 408, 0.1 mi from the route); Museo de Tropas de Montaña (museum, mile 414, 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.