The Friends of the Great Swamp in Pawling, N.Y., will hold its 21st annual Celebration of the Great Swamp Oct. 21 from 11 a.m. to 4 p. m. and Oct. 22 from noon to 4 p.m.

The event will feature the sale of Great Swamp art and photography, educational programs, children’s activities, Jim Eyring’s Birds of Prey, Mike Musnick and his turtles, a Great Swamp slide show, Chuckie Goodnight and the sale of Great Swamp shirts and more.

The free event will be held at Christ Church on Quaker Hill.