The exotic marine world and busy docks of Acapulco create a colorful background for the adventures of two aspiring young sea divers. When his uncle who has raised him plans to move to Mexico City, Tony Castillo energetically strives to earn enough money to remain in Acapulco near the sea. The fates seem to be against him, as he loses one job after another, and the futile search for buried treasure, the agonizing struggle against a tidal wave, a brutal fight with a cheating diver nearly break his spirit. His uncle finally realizes that Tony's strong friendships constitute a sounder security than money, and enables him to stay in Acapulco. Dorothy Witton's enthusiasm for and familiarity with the diver's world give this book a gusto which will appeal to young adventure seekers.