Chimelong Ocean Kingdom (长隆海洋王国)

Chimelong Ocean Kingdom on Hengqin Island dominates as the world's premier marine theme park, holding seven Guinness World Records including the largest aquarium at 48.75 million litres of water and the largest underwater viewing dome. With over 100,000 marine animals like whale sharks and beluga whales, it significantly outperforms #3 Lovers' Road Coastal Walk in sheer scale and excitement for families. Adult tickets cost about CNY 399 (HKD 430), while children under 1.4m pay CNY 299—30% cheaper than comparable international parks. TripAdvisor reviewers rate it 4.5/5, calling it "better than SeaWorld" for its superior crowd management. Plan a full 8-10 hour day; it's a 20-minute coach ride from the Hong Kong-Zhuhai-Macau Bridge's Hong Kong Port.