A cheerful young boy prepares for and enjoys a family seaside holiday, eagerly anticipating swimming, sand play, and time with neighborhood children. The episodic chapters trace preparations, travel by automobile, and a sequence of beachside adventures—fort building, new friendships, a marshmallow roast, a small rescue when a companion is lost, and a brief scare on the water—each resolved through cooperation and adult assistance. The stories mix gentle suspense and humor while emphasizing curiosity, practical learning, and constructive problem-solving. The tone remains warm and reassuring, closing the visit with restored order and a happy conclusion.