the globe says
Peru
The largest city on Earth unreachable by road — fly from Lima, or arrive the old way: days by cargo boat hammock from Yurimaguas.
A rubber-boom mansion guesthouse in town, then a river lodge or village stay upstream.
The Amazon as a working world, not a postcard: floating Belén market, pink dolphins, shamans real and fake, and the jungle pressing on the city from every side.
Walk Belén market early — dry-goods aisles of things you cannot name — then book three days on the Tahuayo or Yarapa rivers with a local guide.
June to October, low water
A su servicio — at your service; the courteous Peruvian close.
Tree of Rivers by John Hemming — the Amazon's whole human history.
The Pacaya-Samiria reserve — flooded forest by canoe, days deeper in.
Ayahuasca tourism is a minefield of charlatans — if that interests you, research for months, not days.