To determine the genre of "Big Water," I would need more context from the story itself, particularly the themes, characters, and plot elements presented throughout the narrative. However, if the excerpt involves fantastical elements, imaginative settings, or mythical creatures, it would likely fall under "fantasy." If it features exploration or a journey, "adventure" could be the fitting choice. If there are clues and an unsolved problem, it would suggest "mystery." Lastly, if the story incorporates advanced technology or speculative ideas about the future or space, it would align with "science fiction."
Based on these considerations, could you provide more details or context from the story?