Wet, slick, and overgrown
My son and I really enjoyed our ride today, mostly. The trails were a bit overgrown but passable. The road-grade trail out to the falls is rough and a bit overgrown in places but still the preferred option to get to the falls. The single-track trail coming back from the falls (parallels the road-grade trail for a mile) was almost impassable with a bike: we walked almost all of it due to thick underbrush, dozens of downed trees, and several mud bogs.