For a natural experience of a different kind, plan an excursion to the steaming pools of Izunagaoka Hot Spring. This place is famous for its mineral-rich waters.
This naturally heated water source is situated in Izu Nagaoka Onsen, a destination that has so much going for it! Izu-Mito Sea Paradise, Shuzenji Temple, and Awashima Marine Park are other worthwhile attractions not far away when you're all done at Izunagaoka Hot Spring.