Xiaoshan saw Qian Jiangchao's problem.

1. Personally, I think it's best in August 15, which is basically around 9 am.

2. Both Meiren Dam and Guanchao City are located in different places, depending on where you go. There is a parking place, but you can't drive in on the day of tide watching. You have to park your car outside and walk in. I don't know if you can drive here in two days of your choice.