Saturday river trash cleanups: 8:30 a.m. to noon, April 24, May 22, June 19 and Sept. 18. Meet at the Grove Street boat launch in Elmira. Wear workbooks or sneakers. Kids 15 and under must be accompanied by an adult.

May 15: 11th Annual River Float on the Tioga River. About 6 miles from Lindley boat launch to in Lindley, N.Y. to the Mulholland Bridge in the town of Erin. Registration information coming soon.

June 12: 6th Annual River Fest Boat Float on the Chemung River, 10 a.m. to noon. Paddle 11 miles from Bottcher's Landing boat launch in Big Flats to the Grove Street boat launch and River Fest in Elmira. Sponsored by the Near Westside Neighborhood Association, Elmira, N.Y.

June 12: Join in the River Fest fun by mountain biking along the Chemung river trails in Elmira and West Elmira in a round-trip beginning at the Grove Street boat launch in Elmira. Cyclists will raise funds for Chemung River Friends and the Near Westside Neighborhood Association. Co-sponsored by the Finger Lakes Mountain Bike Club.

Sept. 11: Mark Twain River Trail Mountain Bike Ride, 8:30 a.m. to 10:30 a.m. Meet at the Grove Street boat launch and take a 5-mile-long round-trip ride west on the dirt river trails. Learn about Mark Twain's humorous thoughts on bicycling. Co-sponsored by the Finger Lakes Mountain Bike Club. Fee: $10/rider.