Guyana eSIM

None. Kaieteur sits in the middle of the forest and is reached mainly by light aircraft, so a day trip means being out of contact from morning until you land back. Tell people at home in advance that you will be silent for the day, message them once you are back at Ogle or in Georgetown, and expect the flight itself to shift if the weather closes in.

Yes. For Brazil you cross the Takutu bridge at Lethem, and for Suriname you take the river ferry across the Corentyne at Moleson Creek. Both operate only during set daytime hours. The road from Georgetown to Lethem is a long unpaved route that takes many hours and can become impassable in the rainy season, so check its condition with a driver before you set out.

Guyana has two wet spells, roughly May to August and again around November to January. The falls are at their most impressive then, but interior roads can turn to mud and become impassable and domestic flights are delayed more often. If you are heading into the Rupununi during the rains, keep one or two spare days in the itinerary rather than booking a tight connection home.

Most plans here start when the phone first connects to a network at the destination, so you can install in advance at home and switch it on after landing. Each plan page states its own rule.

No. The eSIM is a second line, so you keep your home number for SMS OTP. Turn off roaming data on the home line and set the eSIM as the data line.