Detroit and St. Claire Rivers
Besides being well marked, the Detroit River is also well lit at night. It is probably actually prettier at night than during the day. All of the industrial complexes on both sides of the river are full of lights and really light the way for you. It is actually pretty cool! Just keep an eye out for the occasional freighter. It may be a little tougher to discern their lights from the shoreline when at a distance, but you will be able to see them in plenty of time.
It''s a great trip. Also, you don''t have to worry about radar to keep from running into anything except the Ambassador bridge, and I don''t think you would miss that!