If you want to visit a big park without traveling one or two hours, Century Park is the one. Fine landscaping, beautiful flowers, a massive lake, and tons of green spaces to lie down on, play frisbee, or whatever. You can also rent tandem bicycles or sightseeing boats. The park has a kids amusement area too. Be aware, it's a popular one, but the sheer size of the park means it feels fairly peaceful in places. Entrance is 10rmb, with free entry for the elderly and children under 1.2m tall. It's open 7am to 6pm during the summer.