The posted coordinates will take you to the first stage of this Multi cache and to moving water, but will not take you to the Saginaw River.
The Saginaw River is a 22.4-mile-long river in the U.S. state of Michigan. It is formed by the confluence of the Tittabawassee and Shiawassee rivers southwest of Saginaw. It flows northward into the Saginaw Bay of Lake Huron, passing through the cities of Saginaw and Bay City, both of which developed around it in the 19th century.
The Saginaw River was used for fishing and as a transportation route by canoe by indigenous peoples for thousands of years prior to European colonization. From the 18th century, fur traders and trappers rendezvoused at a post at the mouth or traveled along the river and its tributaries to trade with the Ojibwe tribes of the region for European and American manufactured goods.
As towns developed along the river, it supported additional travel inland, as well as powering the operation of sawmills and later factories. The first lighthouse was completed in 1841, and a pair of lighthouses were built in range configuration in 1876. They were converted to electricity in 1915. The Saginaw River Rear Range Light was listed on the National Register of Historic Places in 1984.
We've all done multi caches where you can pretty much dirty cache the final. But can you here? How many stages you have to work through to get to the log is all in your hands. Good Luck!