My suggested travel guide:
In the morning, visit Guangfulin cultural site to learn about ancient farming culture and pottery making technology. Visit Chenjiashan site and Guangfulin ancient city and feel the massiness of history.
noon: taste local specialties, such as fish head tofu, steamed bass, etc.
afternoon: visit the island in the middle of Guangfulin Lake and enjoy the beautiful scenery. Visit the water museum to learn about the culture and history of the water town.
in the evening: enjoy dinner and enjoy the night view at Guangfulin Aquatic Restaurant.