Wakkanai Port Market is a practical stop rather than a grand attraction, but it fits the city well. The complex gathers seafood shops, souvenir counters, restaurants, and small displays on Wakkanai's port history.
It is especially useful in bad weather or before a ferry, when you want a warm indoor place and something local to eat. The seafood is the point: crab, fish, octopus, and dried kelp are central to Wakkanai's economy and table.