Sarnia sits at the southern tip of Lake Huron where it narrows into the St. Clair River, connected to Port Huron, Michigan by the Blue Water Bridge. The city is probably best known for Chemical Valley, the dense cluster of petrochemical refineries south of town that lights up dramatically at night. But Sarnia also has a surprisingly appealing waterfront and some of the best freshwater beaches in Ontario.
Canatara Park and the beaches along Lake Huron Road are the highlights in summer, with clean sand and warm water that draws families from across southwestern Ontario. The Judith and Norman Alix Art Gallery downtown hosts a small but well-curated collection, and the waterfront boardwalk along the St. Clair River through Centennial Park is a pleasant walk with views across to the American side. Sarnia's downtown has been reinventing itself with local breweries and restaurants that make it worth more than a gas stop on the way to somewhere else.
The city also serves as a gateway to the Lake Huron shoreline heading north toward Grand Bend and Bayfield, two of Ontario's most charming lakeside towns. If you are crossing the border, the Blue Water Bridge crossing tends to be less congested than the Windsor-Detroit tunnels and bridges to the south.