To get to Fengshun Tangkeng Town, which is the center of the county, you can take the Guangming Express to the Fengdu Hotel, which is also a regular hotel.
The price is more than 100 a night. There are hot springs in Fengshun. Winter is just right now. There are Longguizhai Waterfall, Feiquanjieling, etc.
You can search on Baidu.
As for snacks, there are a lot of "bundles, soup, beef balls, pork balls, dried tofu with oil, noodles, ginger sugar, etc. Liuhuang olives are delicious now". You can take the Guangming Express again on your way back to Guangzhou. It's elegant.
You can book tickets at big hotels. It seems that the bus departs at 9 am. There are many buses to Guangzhou, all from Tianhe Passenger Transport Station.