Is this a restaurant only or is it also a seafood market where we can get fresh seafood for cooking at home?

My guess is that it started as a fish market and the restaurant was secondary, but yes. You can buy fresh food to take home to cook

Restaurant and Fish Market where you can buy seafood to cook at home

There is a seafood counter that displays and sells fresh seafood.

We have a full retail fish counter featuring all the raw seafood and raw shellfish we sell cooked in the restaurant. thank you.

It's both a restaurant and place you can purchase seafood to take home with you.