Friends of the Arcata Marsh (FOAM) is sponsoring a free tour of the Arcata Marsh & Wildlife Sanctuary on Saturday, October 22. Meet leader Paul Johnson at 2 p.m. in the lobby of the Interpretive Center on South G Street for a 90-minute, rain-or-shine walk. Masks are recommended but not required inside the building, regardless of COVID vaccination status. For more information, call (707) 826-2359.