depending on the time of your trip, I suggest two days! ~ You can find a farmhouse hotel near the beach of Jihu, which Shengsi must visit. As long as it is not on weekends, it is very cheap and clean. If you want to stay better, you can go to the central town of Shengsi and Caiyuan Town to find a hotel. The price is not expensive on weekends, and the drive to the beach is less than 11 minutes. The food and beverage is mainly seafood. If you are not used to it, try to bring antidiarrheal drugs. There are also medicines to prevent heatstroke.
since the beach is the most important thing, you should bring a bathing suit. Enjoy the sunshine beach food.
1. At about 8 o'clock in the morning, there is a bullet train from Wenzhou South to Ningbo. It is 11 o'clock in Ningbo South, and then take bus No.371 in Ningbo South to Zhenhai Wharf. When you get there, it's about 11: 31 at Zhenhai Wharf, and then buy tickets for 12: 31 or 13: 31 to Shengsi. The arrival time of the express boat is around 3 o'clock, and that of the slow boat is 6 o'clock. The total cost is 85+3+155.
2. Take a bus from Xincheng Station to Dinghai in Zhoushan at 7.51 in the morning, and arrive around 1 o'clock. Then take a bus or taxi to Sanjiang Wharf and take a boat to Shengsi. The cost is 85+3+115.