HANNAWA FALLS — Go for a fungi focused walk with local expert Claire Burkum, a biology instructor at St. Lawrence University, on Friday from 2 p.m. until 3:30 p.m. You will walk along the Red Sandstone trail and discuss major characteristics used to identify fungal fruiting bodies, including mushrooms, shelf and bracket fungi, coral fungi and others. You will also talk about the various roles fungi play in a forest ecosystem and some ways humans use fungi. Wear comfortable walking shoes and you may also want to bring a hand lens (or magnifying glass) and some bug spray. Meet at the North Entrance of the Red Sandstone trail, off the Back Hannawa Road, between Potsdam and Hannawa Falls. You can get there from Potsdam by traveling south on Clarkson Avenue until it becomes the Back Hannawa Road for a total of two miles and the parking area will be on your left.