The port town of Hội An and its bridge from the 18th century. Watercolour engraving by Jacques Chereau (1688–1776), circa 1750. Historical maps through the 17th and 18th generations show Hội An around the northern lender, connected to the sea by means of the Đại Chiêm Estuary and connected to Đà Nẵng's Đại Estuary by another river.