Hi!
I am currently in Hong Kong (CUHK) and will be traveling to North China from Shenzhen airport. My flight is at 7:30AM so I wish to get there no later than 6:30AM. Since most public transports do not operate until 6ish, what should I do?
I am considering these options:
1. Leave Hong Kong around 4AM and get a taxi to the border and a taxi to the Airport (don't know how this works yet)
2. Go to the Airport the night before and spend the night there (6hours)...Are the facilities open 24hr? I wouldn't mind sitting in starbucks for 6 hours...

Thank you!