Landmark Hotel is next to Haizhu Squre subway Station. You can use subway to Gongyuan Qian Station first and then change to Line 1 to Guangzhou East Railway Station. Find the Qiaoguang East station to take city bus 1, 208, 219, 236 or 57 to Liu Er San Lu (623Lu) Station. Walk about 500 meters to Shangxiajiu. You can also take bus 530 in stead of walking.

Is Qiaoguang East station near the Hotel Landmark Canton? Is it local city bus station ? What is 623LU ?

Yes, it is a local city bus station, nearby the hotel. 623Lu is a road name, formerly called Shaji Lu/Rd. It is also a bus station' name.