El Oro stretches from Guayaquil to the Peruvian border and most people donât stop en route. Admittedly, this area has no must-see attractions but the main city Machala is worth a look, if only to say youâve visited the âbanana capital of the worldâ. Machala is also a convenient starting point for exploring the mangrove circled town of Puerto BolĂvar, the markets of Santa Rosa, the gold-mining community of Zaruma and the peninsula beaches of JambelĂ. On the RĂo Zarumilla, on the border with Peru, sits Huaquillas, the busiest crossing point between the two countries. Huaquillas offers little more than a checkpoint and a shopping destination for Peruvians looking for bargains.