For hot pot, there is a Little Tail Sheep restaurant on Gongnong Road, which costs 38/person at noon and 48/person at night. I think the variety of dishes is a bit limited, but the taste is okay.

For barbecue, Daxida under Louis Lotus is fine. Basically, all the barbecues you like are available. It costs 59 yuan per person, and you also need to add 8 yuan for carbon.

If you want to drink tea, I recommend you to go to Qiantang Tea Man next to Jinhai Hotel. I have been there and it was fine. It costs 50 per person. But you have to go early, otherwise there will be no food.

The most popular buffet in Dinghai now is definitely Yidong Kaili. It is not 98, but the price has increased to 118 each, but the environment is good. During the event, buy 10 and get 3 meal coupons free. You can compete with others to buy it. That works out to 90 per person.