Paraguay eSIM

Only up to the frontier. Ciudad del Este is the Paraguayan gateway to the Iguazú Falls, and the least visited of the three sides, but the falls and the airports that serve them are in Brazil and Argentina. A plan sold for Paraguay is for Paraguay. If the day crosses, either carry a second plan for the country you enter or choose one whose listed territory already names both, and check that list before the crossing rather than at it.

Road hours decide it. Asunción to Ciudad del Este is 327 kilometres on Ruta 7, four to four and a half hours; Asunción to Encarnación 370 kilometres, four and a half to five; Encarnación to Ciudad del Este 200 kilometres, about two and a half. Each leg eats most of a day by bus, so the triangle of three cities with a full day at the missions comes to about five. Bolted onto an Iguazú trip, Ciudad del Este alone can be one overnight.

Base yourself in Encarnación and treat the missions as a morning. Trinidad and Jesús de Tavarangue are both UNESCO-listed Jesuit mission ruins outside the city, and they are usually seen on the same run rather than separately. The Costanera and its river beaches take the afternoon back in town. The road out runs through the fertile eastern hills, where paved routes concentrate on a few corridors and the country in between is farmland, so take the map and the return times offline before leaving Encarnación.

Only if the road is part of what you came for. Filadelfia, the town at the centre of the Mennonite colonies, is 450 kilometres from Asunción on the Trans-Chaco Highway: five to six hours each way on a long straight road through sparse scrubland. That is two days of the trip spent moving, which the semi-arid wilderness and the wildlife-watching can justify on their own terms but not as a filler between the river cities. Infrastructure out there is thin, so carry the route offline.

April to June and August to October. Summer here runs December to March and is very hot and humid, regularly 35 to 40°C and above, broken by brief but heavy thunderstorms — this is among the hottest regions in South America. Winter, June to August, is mild at roughly 10 to 20°C, though cold fronts pushing up from the south, the friagem, can bring nights close to freezing. The Chaco is hotter and drier again, semi-arid all year.

Bus, in almost every case. The domestic flight network is limited and road travel is the norm even on the longer routes — there is no practical flight between Asunción and Encarnación, which leaves a bus of four and a half to five hours over 370 kilometres. Long road stretches are therefore the main thing your data meets in Paraguay, and signal along them is not something to plan around: load tickets, maps and anything to read before the bus pulls out, not after.

It sits between them, which is why many trips arrive overland. Ciudad del Este is the triple-frontier city, so arriving from the Brazilian or Argentine side of the Iguazú Falls is common. Westward, the Gran Chaco is flat semi-arid wilderness with the Trans-Chaco Highway as its single artery. Whichever way you leave, the next country is a separate territory for a data plan: read the plan's list first, and if data stops shortly after a crossing, that is usually the reason rather than the handset.