Chubu and Japan Alps eSIM: Nagano, Takayama, Kanazawa Connectivity Guide

Central Japan’s Chubu region offers one of the country’s most geographically dramatic travel corridors — the Japan Alps, three parallel mountain ranges running north to south through Nagano, Gifu, and Toyama prefectures, creating a landscape of 3,000-meter peaks, deep valleys, traditional alpine villages, and the kind of outdoor environment that draws hikers, skiers, and landscape