Become a part of the team! The Darien YMCA Piranha’s competitive swim program offers children and teens an opportunity to work with trained coaches to improve swimming skills, endurance and promote a healthy lifestyle.
Participants build character values through personal improvement, training, goal-setting, teamwork and competition.
— an announcement from Darien YMCA
Their strong arms (and in one case, perhaps a strong appetite) can be seen in this photo from the Y:

Pirhana swimmers hold … rubber duckies?

Pirhana in the water