Wow, this is a close one. If it were springtime or the water levels were high enough, then the far upper Jacks Fork 8-mile stretch from Buck Hollow (hwy 17) to Rymers would be a top contender due to its extreme rugged beauty and huge Jam Up Cave, but for a year round float I feel that the best (and most popular) single day float in the Missouri Scenic River region is the 10-mile upper Current River stretch from Akers Ferry to Pulltite Spring campground. This will average about 6 hours, but if you like to stop a lot and for longer periods to explore and enjoy the river (like me), then it can be turned into an 8 hour trip. You will average about 2 miles per hour + any stops. It has just about everything that you could want. See the Ozark National Scenic Riverways (Current River & Jacks Fork) zoomable map here. At the beginning you will get to see the car ferry at Akers which is the last 2 car ferry in the state of Missouri. This river stretch’s centerpiece is the famed Cave Spring …. a large 140 ft. deep spring cave which is a brilliant blue color that you can float into with your watercraft. This is located about 5 miles down on the left in your 10-mile journey. This stretch has a larger number of gravel bars for you to stop (or camp) on. More than on the next stretch from Pulltite to Round Spring. (Fact: The Eleven Point River has far fewer gravel bars than the Current River, especially above Turners Mill). This Akers Ferry to Pulltite stretch also has a nice a set of minor rapids which many call the “fun” section of rapids on the upper Current River. If you don’t like crowds, then avoid this stretch on Saturdays between Memorial Day and Labor Day weekend. The BEST days to float this stretch with the fewest floaters are Tuesdays and Wednesdays. This stretch does not have any roads within any distance of the stretch of river that you can hear any vehicles, unlike the next stretch from Pulltite to Round Spring which as you get nearer the Round Spring bridge you can hear road traffic. If you would like to float this stretch then I would recommend that you call Current River Canoe Rental located at Pulltite campground. That way your vehicle is right there at the end of the trip near the river waiting for you. The store there opens at 8am and the first bus goes up to Akers about 8:30am, then about every hour or two afterwards through lunchtime.