Going to Guang Zhouta, I heard that parking fees there are very expensive, right?

I haven&;t tried driving there, so I don&;t know much about it, but the bottom of Guang Zhouta is the subway exit, so you can take the subway. Next to Guang Zhouta is Guang Zhouta Wharf, where you can take a night tour of the Pearl River by boat. In principle, you can disembark wherever you get on board.