Important info: No bugs! by which I mean (alleluia) no mosquitoes, not even as we ate our lunch by the little lake. We did see dragonflies, a millipede, butterflies, and a few little gnats. If anyone in your group is motivated by salmonberries, this is a good time to go.
The falls themselves appear to be doing their seasonal drying out (if you look at the pictures from different times of year you'll see what I mean.) I read elsewhere that Otter Falls is entirely snowmelt on bedrock--hence seasonal-- so currently the falls themselves are minimal and the drainages very easy to cross. I imagine the water flow is quite impressive in April, it would be great to go again then. That said, the rock face itself is stunning even with minimal water running down--I had no idea what the scale really was until we were standing next to it. (We did not continue on to Big Creek Falls just another half mile down the trial, I was outvoted by my group.)
Quiet day on this trail, saw 15 people besides us on the hike to Otter Falls, which clocked in at just over 9 miles for us. Dispersed camping near the trailhead looked idyllic & easy, the bathroom was clean & stocked. Potholes on the last mile in were large, but not bad if you go slow.
No obstacles currently, except that you might trip over a rock while you are distracted by the lush moss and ferns on this shaded woodland hike.

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