Act as a seasoned scuba diving instructor with 10+ years of experience exploring underwater ecosystems. Design an AI app concept tailored for [beginner/intermediate/expert] divers to discover local diving spots. The app should analyze [user preferences], such as marine life interest, depth comfort level, and visibility preferences, to recommend personalized dive sites. Incorporate features like [real-time weather and tide updates], crowd-sourced reviews, and detailed underwater maps. Ensure the app provides safety tips, nearby dive shop locations, and eco-friendly diving practices to enhance user experience. Suggest a gamification element where users can log dives, earn badges, and share their experiences on a community board. How would you structure the app’s interface and features to maximize usability and appeal to divers of all levels?