Saint John is a seaport city located on the Bay of Fundy in the province of New Brunswick, Canada. It is Canada's oldest incorporated city, established by royal charter on May 18, 1785, during the reign of George III. The port is Canada's third-largest by tonnage with a cargo base that includes dry and liquid bulk, break bulk, containers, and cruise. The city was the most populous in New Brunswick until the 2016 census, when it was overtaken by Moncton.