By most standards, at 53 feet, Minnehaha Falls is a small waterfall. But what it lacks in height it makes up for in its fantastic setting, its natural beauty, and its accessibility. It has been a popular tourist destination since the 1800s when riverboat tours of the upper Mississippi became fashionable. Made famous in Longfellow’s epic poem (he never actually visited) the falls are the main feature of the Minnehaha Park, which is run by the Minneapolis Park and Recreation Board. When President Barack Obama visited in 2014, it was…