NATHAN INVINCIBLE

A long, flat stretch of river punctuated by two sets of light Class I rapids, Grand Rapids and Irish Rapids.  Both are very wide and given how much water is flowing over them, we had no issues even in November when a spill would be bad news.  The river winds around and is quite nice considering how large it is.  Fortunately there's not much development to look at until you get closer to town.  This is an all-day trip so plan accordingly!