You mean you should finish them in one day? I think it is possile. Guangdong Provincial long-distance Bus Staion (广东省汽车站)nearby Guangzhou Railway Station has direct bus station to Zumiao Bus Station. Ancestor Hall is just oppposite the bus station. From the Temple, you can take toursim Special bus Line 1 to Xiqiao Mountain directly. It will costs more time on the mountain. The last bus from Xiqiao Bus Station back to Guangzhou at 19:30 or so. You should leave before the time and get back to Guangzhou directly. Hope it helps.