Amy and I canoed the Buffalo National River in Arkansas over spring break–three nights, three days, 45 miles. I highly recommend it. The Buffalo offers beautiful limestone-tinted water, huge cliffs, manageable rapids, and wildlife galore. It’s also 12 hours south (warmer) than Minnesota. We timed our trip perfectly. Two days after we got off the river, it hit flood stage. Check out this video of the White River, downstream of the Buffalo:
Here are some pics (click to enlarge):