4○3 is combinations of "4" in Yon(4)ka-cho shopping street, "○" in Tama(a gem)-ya, and "3" in San(3)ka-cho shopping street. "Saruku" means "strolling around" in Sasebo dialect. Its total length in a straight line is about 1 kilometer which makes it the longest arcade in Japan, and it consists of more than 160 stores. You can enjoy shopping comfortably regardless of the weather. There are souvenir shops, clothing and daily goods stores, as well as restaurants and cafes.