September/October Art Show - Paul and Nancy Rickard This show, “The Spirt of Arcata Marsh, 2023,” celebrates a contemporary depiction of the now 54-year-old marsh. The wastewater treatment plant, native flora, fauna and human community continues to thrive and coexist. A free public reception for the artists will be held at the Interpretive Center on Sunday, Sept. 10 from 1 to 4 p.m.