NEW CANAAN - Lifeguards received state-of-the-art training today at Kiwanis Pond through a new program designed to prevent drowning.

The program, called Wahoo, alerts lifeguards when a swimmer has been underwater for too long. Wahoo uses swim bands that have sonar transmitters. Lifeguards are alerted with yellow lights if a swimmer wearing a band is underwater for more than 20 seconds. The lifeguards are alerted with red lights and a siren if the swimmer is underwater for 30 seconds.

YMCA leaders say they're using the program because kids will be swimming in Kiwanis Pond starting next week.

Wahoo developers say every child that participates at this YMCA camp will be required to wear a swim band.