240h route assumptions
- Example origin airports: LAX, SFO, SIN, SYD
- Mainland entry / exit: CAN → WKL
- First stop after mainland China: HKG
- Planned stay areas: Guangdong
Why this route shape works: Rail exit to Hong Kong: enter mainland China by air, leave by HSR through West Kowloon.
Watchpoint: Airline check-in agents outside China may not recognize WKL as a listed rail exit. Carry the Boarding Kit and a confirmed HK onward plan.