A band of five children and a baby spend a seaside summer at a cheerful boarding-house, where a sequence of episodic adventures unfolds: preparing for the trip, learning to swim, beach outings, fishing, day camps, exploring a local mining operation and a bee-ranch, composing verses, and a street masquerade. The narrative follows their energetic play, practical problem-solving, and small acts of courage and kindness, showing family ties, friendship between neighbors, and the pleasures of outdoor life in an interwoven series of lighthearted episodes.