I can suggest you Abashiri city at North Hokkaido. There is excellent ski-snowboard slope with pipe and restaurant. Usually there aren't much visiters espcially day time. City about 10-15 thousant inhabitants. Port,museum,hotels,Ofuros-saunas ,reindeers, restaurants, snacs and calmy like in Finland . Nearly airport Memanbetsu about 15km. Several lakes, bowling, railway and bus stations in Abashiri like in Memanbetsu, Fish market.
Abashiri City Travel Site-Tourist- see point 10.
also hotels
Abashiri City Travel Site-Hotels-