Sorry for not giving coords. Mystery amphibious ships can be seen Xiuying harbor ( 20 01 30 N 110 16 32 E ) and at Zhangjiang (next to some frigates/destroyers) at 21 12 54 N 110 26 11 E )
The two warships in the top right picture are a Jianghu class frigate (about 100m long, the shorter one) and a Luda class destroyer, about 130m long.
The patrol boats are also near Xiuxing, slightly further east.