How can we get to this after visiting Beijing Pedestrain Street OR Shangxiajiu Pedestrain Street at night in Guangzhou

Zhujiang Yeyou (The Pearl River Night Cruise)
The trip will start from the Xidi Dock and end at the GZ Bridge. There are more than thirty attractive areas along the bank.

We prefer 20:00 - 21:30. It costs about CNY38 (or CNY48 including CNY10 for dinner) for tourist boat and about CNY68 (CNY98 including dinner expenditure) for deluxe boat.
Qn: How to get to ask the tourist boat for the details? 1.5 hrs return? It looks great RMB48 including cruise and dinner.