Tsurumaki Onsen

Mountain resort town in Fuji-Hakone-Izu National Park, with Hakone-Yumoto, Miyanoshita, Gora, Sengokuhara and a dozen more sub-areas spread across the caldera.

Quiet Kanagawa onsen in the foothills of the Hakone outer rim, on the Manyōshū-era list of historic baths. Plum blossoms in February.

Seaside city on the Izu Peninsula, an hour from Tokyo by Shinkansen. Coastal sodium chloride springs; fireworks over Sagami Bay in summer.

Coastal Izu resort with a long Edo-period bathing history. Famous for the wooden Tokaikan inn, sodium chloride springs, and fresh sashimi at the morning market.