Volunteers from the Lake Chautauqua Luther Center helped pull out an almost impenetrable mass of Water Chestnut in 2013. Submitted photo

Audubon's Invasive Species coordinator, Chloe Petry, works with staff from WNY PRISM to remove Water Chestnut from ACNC's Big Pond. Submitted photo

Water Chestnut resembles a light green circle of floating Christmas trees floating on the water. To volunteer to help Audubon clear the pond of this invasive plant, call 569-2345. Submitted photo