There is a local fish hot pot restaurant located just across the Danyang bus terminal, at the road junction next to the huge bridge. Unfortunately I cannot translate the name of the restaurant as it is in Korean language, but I have took some photos as attached.
This restaurant serves a very delicious and spicy fish hot pot with rice and various side dishes. The fishes are very fresh and obtained from the fish tanks of the shop. To make it more interesting, the fishes (consisting of a perch like fish and catfish) are from the nearby river and lake so it is really a local dish. Because the perch like fish (see photos) is more unique, I tried this for the first day and then tried the catfish (see photos) on the second day.
Because it is quite a lot of food and the hot pot is big, it will cost about US$35 total for the whole meal. If shared among a few persons, this will be more worthwhile.
More information and photos are at part 2 of this tip.
Attached are more photographs of the local fish hot pot meal which I tried while at Danyang. The hot pot is very delicious, hot and spicy, and is very suitable for a cold day such as during autumn or winter :-) The restaurant is also very cosy and relaxing.
There are several 24 hours convenient stores (especially the Family Mart chain) along the main street of Danyang as well as near to the bus terminal next to the Danyang bridge.
These convenient stores sell foodstuff such as buns, cookies, instant noodles, drinks, diary products etc which you could purchase and eat at your hotel/motel room if you are on a budget.
When we visited the underwater village. This restaurant is located on the river near the hill of underwater village. Don't have a chance to eat their, so no comment.