The Port of Guaymas is one of the most important commercial ports on Mexico's Pacific coast, handling mineral exports from Sonora's mines and agricultural goods from the Sonoran desert. The ferry terminal here is where most travellers encounter the port — the crossing to Santa Rosalia on the Baja California peninsula takes about six hours and offers views of the Sea of Cortez that are spectacular in clear weather.
The port area itself — industrial and working rather than scenic — is worth a short walk to see the shrimp fleet at anchor, the rail line that links the port to Hermosillo, and the dramatic setting of volcanic mountains enclosing the bay. The natural harbour is deep and sheltered, which is why the Spanish chose it as an anchorage nearly five centuries ago.