Saitama Prefecture (埼玉県, Saitama-ken) is Tokyo‘s neighbor to the north. Much of southeastern Saitama, including the prefectural capital of Saitama City, are considered suburbs of Tokyo, while its western parts are mostly rural and mountainous and include parts of the Chichibu-Tama-Kai National Park. The former castle town of Kawagoe and the mountainous Chichibu region, known…