**"The Club of Water Sportsmen"** is an exciting adventure book written by Harry Castlemon. This is a story about four young athletes who decided to spend the summer on a boat in the swirling river waters. During their travels, they encounter dangers, trials and discoveries that help them become true friends and overcome their own fears. The book is full of exciting adventures, intrigue and important life lessons. "Club of athletes on the water" will captivate readers of any age with its dynamics and unpredictability of events.