The
Petitcodiac River , known informally as the
Chocolate River, is a
Canadian river in south-eastern
New Brunswick. The river has a meander length of and is located in
Westmorland,
Albert, and
Kings counties, draining a
watershed area of about . The watershed features valleys, ridges, and rolling hills, and is home to a diverse population of terrestrial and aquatic species. Ten named
tributaries join the river in its course toward its mouth in
Shepody Bay. Before the construction of a
causeway in 1968, the river had one of the world's largest
tidal bores, which ranged from in height and moved at . With the opening of the causeway gates in April 2010, the river is flushing itself of ocean silts, and the Bore is returning to its former glory.