Between 2.5 and 3 miles
About 1.5 miles each way. There's a minor drop in elevation to the falls and then you get to climb back up on the way out.
Yes less than two hours depending on your physical ability and lollygag meter =) Its an easy hike and very pretty. There is an alternate route part way back that is longer and a bit rougher -maybe a total of 4 miles if you want more.
Less than a couple hours, trail head to falls and back with kids...
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