
Since 1940, Taiseikan features high-quality natural hot springs with water sourced directly from the property, boasting twice the mineral content of the average hot spring in the Atami area.


Free cancellation until 21/05/2026 23:59(JST)
□■- PlanPoint-■□ / This is a room-only free plan with no meals included. / Enjoy soaking in the hot springs, getting a good night's sleep, or relaxing while gazing at the sea. Relieve your body's fatigue. /All rooms on the second floor or higher have an ocean view. / All baths are flowing from the source.Free private baths are also available for use. / Entire building and rooms equipped with Wi-Fi, perfect for workations. / Check-in 16:00~20:00 / Check-out 8:00~10:00 *Parking is not accessible between 23:00~5:00* * For same-day reservations, please allow time for preparation (up to approximately 2 hours) from the time of your booking. * Even if you specify a check-in time, check-in will not be possible until preparations are complete. (You cannot use facilities including bathing before check-in) □■- Location -■□ / 3 minutes walk from Ajiro Station (Quiet Atami suburb, South Atami) / Convenience store 2 minutes walk /Taking a stroll through the port town of Ajiro is highly recommended!Dusk and early morning are especially the best! / All rooms are non-smoking (smoking rooms available) / There are also restaurants nearby.For those traveling by car, Atami is close by with many options available. ▼ For a quick breakfast nearby ▼ Cafe 'Pumpkin' in front of Ajiro Station (closed on Wednesdays / opens at 8:30 / 3-minute walk) Morning set available for 500~600 yen (includes light meal and drink) Please feel free to use it. □■−Onsen−■□ All baths within the facility are natural hot springs.They are high-quality hot springs with more than twice the average mineral content of Atami's hot springs. Enjoy the hot spring water pumped up from deep underground, with its temperature naturally regulated for an authentic experience. /1F Men's and Women's Baths /5F Observation private bath (reservation is not required) / OPEN 14:00 ~ CLOSE 10:00 (Last entry 9:30)
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
Accommodation tax (from 01/04/2025) (Per person per night)¥200
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Standard Japanese room, Ocean view, Non-smoking ([Seaview] Japanese-Style Family Room)


Free cancellation until 21/05/2026 23:59(JST)
□■- PlanPoint-■□ / This is a room-only free plan with no meals included. / Enjoy soaking in the hot springs, getting a good night's sleep, or relaxing while gazing at the sea. Relieve your body's fatigue. /All rooms on the second floor or higher have an ocean view. / All baths are flowing from the source.Free private baths are also available for use. / Entire building and rooms equipped with Wi-Fi, perfect for workations. / Check-in 16:00~20:00 / Check-out 8:00~10:00 *Parking is not accessible between 23:00~5:00* * For same-day reservations, please allow time for preparation (up to approximately 2 hours) from the time of your booking. * Even if you specify a check-in time, check-in will not be possible until preparations are complete. (You cannot use facilities including bathing before check-in) □■- Location -■□ / 3 minutes walk from Ajiro Station (Quiet Atami suburb, South Atami) / Convenience store 2 minutes walk /Taking a stroll through the port town of Ajiro is highly recommended!Dusk and early morning are especially the best! / All rooms are non-smoking (smoking rooms available) / There are also restaurants nearby.For those traveling by car, Atami is close by with many options available. ▼ For a quick breakfast nearby ▼ Cafe 'Pumpkin' in front of Ajiro Station (closed on Wednesdays / opens at 8:30 / 3-minute walk) Morning set available for 500~600 yen (includes light meal and drink) Please feel free to use it. □■−Onsen−■□ All baths within the facility are natural hot springs.They are high-quality hot springs with more than twice the average mineral content of Atami's hot springs. Enjoy the hot spring water pumped up from deep underground, with its temperature naturally regulated for an authentic experience. /1F Men's and Women's Baths /5F Observation private bath (reservation is not required) / OPEN 14:00 ~ CLOSE 10:00 (Last entry 9:30)
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
Accommodation tax (from 01/04/2025) (Per person per night)¥200
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Standard Japanese room, Ocean view, Non-smoking ([Seaview] Japanese-Style Standard Room)


Free cancellation until 21/05/2026 23:59(JST)
□■- PlanPoint-■□ / This is a room-only free plan with no meals included. / Enjoy soaking in the hot springs, getting a good night's sleep, or relaxing while gazing at the sea. Relieve your body's fatigue. /All rooms on the second floor or higher have an ocean view. / All baths are flowing from the source.Free private baths are also available for use. / Entire building and rooms equipped with Wi-Fi, perfect for workations. / Check-in 16:00~20:00 / Check-out 8:00~10:00 *Parking is not accessible between 23:00~5:00* * For same-day reservations, please allow time for preparation (up to approximately 2 hours) from the time of your booking. * Even if you specify a check-in time, check-in will not be possible until preparations are complete. (You cannot use facilities including bathing before check-in) □■- Location -■□ / 3 minutes walk from Ajiro Station (Quiet Atami suburb, South Atami) / Convenience store 2 minutes walk /Taking a stroll through the port town of Ajiro is highly recommended!Dusk and early morning are especially the best! / All rooms are non-smoking (smoking rooms available) / There are also restaurants nearby.For those traveling by car, Atami is close by with many options available. ▼ For a quick breakfast nearby ▼ Cafe 'Pumpkin' in front of Ajiro Station (closed on Wednesdays / opens at 8:30 / 3-minute walk) Morning set available for 500~600 yen (includes light meal and drink) Please feel free to use it. □■−Onsen−■□ All baths within the facility are natural hot springs.They are high-quality hot springs with more than twice the average mineral content of Atami's hot springs. Enjoy the hot spring water pumped up from deep underground, with its temperature naturally regulated for an authentic experience. /1F Men's and Women's Baths /5F Observation private bath (reservation is not required) / OPEN 14:00 ~ CLOSE 10:00 (Last entry 9:30)
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
Accommodation tax (from 01/04/2025) (Per person per night)¥200
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Standard Japanese room, Ocean view, Non-smoking ([Sea View] Japanese-Style Standard Room Upper Floor)