Do we need to check in to the hotel first or go straight to Guangzhou chimelong on Fri,July 1st 2011?

Hi, we will be staying at the Grand continental apartment on Beijing Lu, our family will be coming from Macau by coach bus, probably arriving in Guangzhou around 11.00-12.00 noon at Landmark Canton Hotel. Do you think it will be too late to start our trip to Chimelong? Should we put our luggage to the hotel first? FYI we will arrived on Fri, July 1st at Guangzhou.
Thank you