The first part of The Cruise of the Snark by Jack London focuses on the preparations for the journey and the initial adventures. The author describes the excitement and fears of setting sail, as well as the challenges of exploring new places. Early in the voyage, London encounters the difficulties of navigation and visits the leper colony on Molokai, showcasing his compassion and curiosity. This section highlights the motivations behind embarking on the voyage and the experiences of the early journey. Readers gain insight into the excitement of exploration, tempered by the realities of the challenges involved. This part establishes the adventurous tone of the narrative and sets the stage for the rest of the journey.

CHAPTER I. FOREWORD
CHAPTER II. THE INCONCEIVABLE AND MONSTROUS
CHAPTER III. ADVENTURE
CHAPTER IV. FINDING ONE’S WAY ABOUT
CHAPTER V. THE FIRST LANDFALL
CHAPTER VI. A ROYAL SPORT
CHAPTER VII. THE LEPERS OF MOLOKAI