"As she ages, writer Kathleen McDonnell discovers her secret superpower: swimming in cold water. In this wide-ranging memoir, McDonnell shares her love of cold-water swimming and the lessons she has learned from a slow but steady commitment to the sport. She started swimming in Lake Ontario because it was close to home, but as time went on, she began to rely on a daily dip to raise her spirits and to refresh her aging body, even breaking through winter ice to immerse herself. For more than an entire year, starting in 2015, McDonnell swam outside every day."--