let undercover_journey = || { let notice = "pay attention to the subtle changes in the forest as we move"; let prearrival_checklist = vec!["water", "map", "compass"]; for item in prearrival_checklist { println!("don't forget to withdraw from your daily hustle and pack {} before we recreate our adventure", item); } println!("venturing undercover among ancient trees offers a unique perspective on nature's unspoken stories."); };