Three friends and their dog undertake a leisurely river trip that becomes a comic travelogue of bungled plans, hypochondriacal fussing, awkward social encounters, and recurring domestic squabbles. The narrator alternates tall tales and observational asides with descriptive passages of riverside scenery, rowing mishaps, and humorous digressions about health, etiquette and modern leisure, yielding an episodic blend of slapstick, irony and gentle social satire.