The place where you can buy fresh seafood at night near Yantai Railway Station is Bonus Market, which is located next to Yantai Port Building and Jiheyuan Hotel. However, the specific purchase situation may require you to consult the stalls or supermarkets in the local market.

Please note that because Yantai is a fishing city, fresh seafood may be very popular in the local area, but at different times and places, there may be different purchase methods and prices. Therefore, it is recommended that you know the market situation and booth information before buying, so that you can find the most suitable place and way to buy.

In addition, in order to ensure that the seafood you buy is fresh, you can pay attention to the following points:

1. Observe the color and smell of seafood. Seafood should have natural color and smell, and should not have obvious rancid taste or abnormal color.

2. Ask about the source and preservation of seafood. Booths or supermarkets should be able to provide information about the sources and preservation methods of seafood, which will help you understand the freshness of seafood.

3. Choose a reliable booth or supermarket. When buying seafood, choosing a stall or supermarket with good reputation and reliable reputation can reduce the risk of buying stale seafood.

I hope this information can help you buy fresh seafood near Yantai Railway Station.