Panda Centre to Airport?

I'm planning on leaving my hotel very early in the morning with my luggage, to go to the Panda centre, and then spending the best part of the day there before heading for the airport for my 4.30pm flight to Hong Kong. However, this is only feasible if the centre has somewhere I could leave my luggage.

Will I have plenty of time, otherwise, to go back to my hotel, before proceeding to the airport? Do hotels generally have "left luggage" facilities?

Thank you