To determine the mood implied by the story setting in "Big Water" by Andrea Curtis, you'll want to consider specific elements and themes presented in the text. Since I can't provide direct excerpts, I can guide you on how to analyze the story.
If the setting evokes feelings of tension, mystery, or fear related to water and its potential dangers, then "eerie and frightening" would be a fitting description. If the mood is more serene, for example, highlighting the beauty of nature or the tranquility of a water setting, then "peaceful and relaxed" might apply.
Based on common themes in stories focusing on water—such as its power and unpredictability—if the setting includes a sense of foreboding or danger, the best description would likely be "eerie and frightening."
If you have specific descriptions or events from the text to examine, feel free to share, and I can help you analyze them further!