Or before going to Yintan, you can find Pizza Hut, McDonald's and KFC in Beibu Gulf Square. How beautiful it is! You can pack it and take it to Silver Beach, which is better than buying it there. Or go back to the city to eat fast food.
In addition, there is a Golden Horse Food City under He An Supermarket in Beibu Gulf Plaza. It's cheap, delicious and hygienic. You can find many snacks, which are more delicious than those in the night market. You can try.
I hope you have a good time in our Beihai! O(∩_∩)O haha ~