Recently had a trip to 百萬葵園 and enjoyed the famous dish, 葵花雞, which is so delicious that even the bones are tasty and
crunchy. But you have to pay - RMB 198 for one. IMO, quite expensive, nevertheless, worth a try.
廣州南沙港毗鄰的萬頃沙十八涌
Take 廣州 地鐵 to 黃閣汽車 城 站 and then change for bus (100 m from the station) to the terminal.
Quite a long trip. Traveling time more than 2 hrs.