The author is excited about snorkeling, because she wants to see turtles , clams and sharks . I know this because in the text it states " I was ready with my " wish list." What did I hope to see and swim alongside? Sea turtles! Giant clams! Reef sharks!"
Orwell uses the word "tractable", which means easy to control. The word "docile" most closely resembles this definition when compared to the other words