This is a relatively new park created while we were in TN, so also new to us, and it is indeed a pearl of a little fen.  This is where Beaver Creek gets its start from springs.  They’ve built nice boardwalks and bridges over the wetlands and creek, and left the rest as natural trails through the woods.  We just missed sighting some deer, as a friendly dog-walker pointed out.  There were all kinds of birds out in profusion, including I think some Towhees.  There were still some flowers blooming in this unique habitat.  Pearl’s Fen backs up to a quarry-turned-park that we’ve explored, so one day we’ll check it out from that end.