The Sanilac Shores Underwater Preserve was established to promote conservation of the submerged historical resources in Lake Huron near Port Sanilac, Michigan.

The Sanilac Shores Underwater Preserve spans a total of 163 square miles (420 km2) of Lake Huron.

Port Sanilac was originally a lumberjack settlement on the shore of Lake Huron named "Bark Shanty Point."

Local landmarks include the Port Sanilac lighthouse (burning kerosene from its opening in 1886 until its electrification in 1924) and a twenty-room Victorian mansion (now a museum) built in 1850 by a horse-and-buggy doctor, Dr. Joseph Loop.

This Sanilac County, Michigan location article is a stub.