I went when I didn't have any activities. Admission is free, but as expected, there are few people and shops and restaurants are closed.
Buy a small racing at a souvenir shop. Personally, I think it's a little expensive, but my son likes it very much.
This is a nice rowing area with a free shuttle bus to Heping Dao Station and about 15 minutes walk to arrival.
You don't have to prepare lunch. There is a cheap meal on the first floor, and boiled potatoes are popular.
You can book a seat if you pay an additional fee, and the view from this seat is very good, but