ThermaeExplore the map →

Wakayama Iwade Onsen

Iwade, Wakayama Prefecture, Kii Peninsula, Japan
Wakayama Iwade Onsen
Location
Iwade, Wakayama Prefecture, Kii Peninsula, Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Iwade, in the northern Wakayama Prefecture along the Kinokawa River downstream from Hashimoto, is a small agricultural community in the broad Kinokawa valley whose traditional cultivation of citrus fruits and vegetables and the Iwade Cultural Property Museum documenting the ancient history of this riverfront community create a quietly rural spa setting on the pilgrimage approaches to the Kii Peninsula sacred landscape. Wakayama Iwade Onsen draws on sodium and bicarbonate thermal waters from the geothermal resources of the Kinokawa valley zone, offering restorative baths in a small riverside agricultural community whose position on the ancient Kumano and Koya pilgrimage road corridor, the Kinokawa cycling trail, and the traditional Wakayama agricultural heritage create an appealingly unhurried and spiritually proximate spa setting on the pilgrimage approaches. The ancient pilgrimage road heritage connecting the Kinokawa valley to the Kumano Kodo UNESCO trail and the Koyasan sacred mountain, the Kinokawa River valley cycling route through citrus orchards, and the traditional Wakayama agricultural heritage of the riverfront community make Iwade a quietly meaningful transitional spa destination on the Wakayama pilgrimage corridor.

Insider tip — Iwade is a small town where the Kinokawa River meets the coastal lowland just north of Wakayama city, and its onsen sits within a rice-farming landscape that retains a quiet agricultural character. Bicarbonate waters at 40 degrees have a softening effect on the skin, and the facility provides a genuine local experience away from tourist circuits. The nearby Kimiidera temple complex on the coast is worth pairing with a post-hike soak.
Find hotels nearby →Tickets & activities →See the map & practical info →

Nearby

Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).