I spent the day alone on the James River, which runs close to my neck of the woods... The trip was relaxing and almost without mishap. :& I'll get to that. This is the first obstacle. There is a tree submerged under the bridge and if you don't know where it is you get hung up on it. The water here is about 15 feet deep, so no gettin off and pushing... can't see it? Me either. But I did manage to get thru.