By the shores of Lake Hamana A gathering accommodation: Bringing people, food, and sounds together

Bringing the "scenery of the past" closer to the "scenery of today" We are Seifuso, 4th generation, opening in August 2024 Located along the shores of Japan's largest brackish lake, an area where seawater and freshwater "meet," adjacent to Lake Hamana. A historic accommodation that has welcomed guests since the Edo period, offering abundant seafood delicacies and a unique tranquil sandy beach on Enshu Nada that resonates with sound. Drawing in the indescribable charm of Lake Hamana

  • Excellent service, excellent meals, and excellent baths & sauna.This was our first trip with our dog, and we made wonderful memories. We’d like to come again in summer.It was an outstanding Accommodation.

    Seiyo 2/5/2026
  • We visited in July with a friend's family! The entrance gave us a nostalgic feeling, and once inside, the modern and spacious atmosphere made us feel amazing! Right in front of the accommodation is Lake Hamana, which felt like having our own private beach! After swimming and playing in the lake, we could immediately enjoy the large and beautiful bath at the accommodation, so there was no inconvenience from beach activities at all! After playing by the lake, the staff at the accommodation prepared dinner for us. The food here is absolutely delicious! You can enjoy plenty of local ingredients from the Lake Hamana area. The staff grilled ingredients over charcoal and served them to us—it was such a delightful experience! There was also plenty of delicious rice cooked in an earthen pot, so we made rice balls to enjoy for breakfast the next morning. On the second floor, there are three bedrooms that were spacious and clean. The bedding and pajamas were incredibly comfortable—I was truly impressed! It was my first time sleeping so well on bedding provided by an accommodation that I even asked about their brand name from one of their staff members and ended up purchasing it myself!Since dogs are allowed here as well, we plan to visit again next time with another friend's family who has a dog!

    k.y.t.s.m. 10/28/2025

Facilities and Services

See All
  • Pet-friendly
Large public bath / Sauna
IN15:00~19:00
OUT11:00
Number of rooms1 room
PetPermitted
Your childPermitted
1st Floor Living Room
  • Vacation rental
  • 255㎡
  • Capacity 2~9 people

Room Only

IN 15:00~19:00
OUT 11:00
¥80,000
No meals ; 2 peopleTax included¥78,400
(USD 493.44)

Dinner included plan

IN 15:00~19:00
OUT 11:00
¥96,000
Dinner included ; 2 peopleTax included¥94,080
(USD 592.13)

Best-Selling Stays

Accommodation With Selectable Dinner Time

Hotel With Kid-Friendly Facilities And Experiences

Onsen Accommodation With Delicious Buffet

Accommodation Near Koala Viewing Spots

Recommended Accommodation For Solo Male Travelers

Onsen Accommodation For Solo Travelers

Introduction of the Accommodation

Bath
Sauna
Bath
Sauna
Bath & Sauna

A nostalgic bathhouse where people from all walks of life gather, offering a space to relax both body and mind. Sauna for up to 5 people: - Adjustable temperature - Löyly available In front of the sauna, there is a deep cold plunge pool with a chiller. Open the bathroom window and unwind on the lakeside deck with fresh outdoor air.

Surfing Spot
Private Beach
Bentenjima Red Torii Gate
Surfing Spot
Private Beach
The sandy beach of Lake Hamana is right in front of you.

Seifuso is located right in front of Lake Hamana, with a sandy beach that feels like a private retreat. Directly ahead, you'll see the Bentenjima Red Torii Gate, and to the right lies the Pacific Ocean and Imagireguchi of Lake Hamana. The nearby Shirasuka area is a popular surfing spot, accessible on foot. There is also an outdoor shower available in the lakeside garden.

Wood-burning stove

Spend time around a wood-burning stove

The 128-square-meter living room features a wood-burning stove, offering the cozy warmth of a fire. *Additional fee: ¥1,000 per bundle of firewood (tax included).

Facilities and Equipment of Accommodation

  • The room
    The room
  • Hot Springs & Baths
    Hot Springs & Baths
  • Surroundings & Others
    Surroundings & Others
  • Meal
    Meal

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Permitted
- Cost: 4,400 yen per pet/night - Size: Accepts dogs from extra small to large breeds - Number of pets: Up to 3 pets per room
BreakfastThere is no information about breakfast.
Your child
You can stay.
Room service
Not available
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Towel · Bath towel
  • ○ Face towel
  • ○ Bath towel
  • × Body towel · sponge
  • ○ Toothbrush set
  • ○ Comb · Brush
  • × Shower cap
  • ○ Hair dryer
  • × Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • × Yukata
  • ○ Nightwear
  • × Bathrobe
  • ○ Slippers
  • ○ facial cleanser
  • × Toner
  • × Lotion
  • × Makeup remover
  • ○ Cotton swab
  • ○ Cotton
  • × Clothing deodorizing spray
  • ○ Refrigerator
  • × Minibar
  • ○ Electric kettle
  • × Tea set (free)
  • × Television
  • × Safe
  • × Scale
  • × Trouser press
  • × Free morning edition
  • × Pay-per-view broadcast
  • × Satellite broadcasting
  • × Video on Demand
  • × Radio
  • × CD player
  • × DVD player
  • × Blu-ray player
  • ○ Speakers for portable audio
  • × In-room PCs and tablets
  • ○ Microwave oven
  • ○ Tableware
  • × Washing machine
  • × Dryer
Facilities and Features
  • ○ Entire building rental
  • ○ With kitchen
  • × Housekeeping service available for consecutive nights
  • × With a washing machine.
  • ○ Multiple bedrooms
  • × Supermarket nearby
  • × Within walking distance of the station
  • ○ Parking available
  • ○ Meal service available
  • × Catering
  • ○ Outside food allowed
  • × Hot spring available
  • × Swimming pool available
  • × Barrier-free
  • ○ Pet-friendly
Esthetic Massage
None
Fitness gym
None
Public Bath
The number of Public Bath
1
Business Hours
---
Hot spring
None
Free-flowing
None
Milky hot spring water
None
Additional Information
Remarks
SaunaAvailable
Hot stone spaNone

Reviews

Overall Score
4.91
The best (13)
  • Rooms & Amenities
    4.92
  • Facility
    4.85
  • Hospitality & Service
    4.92
  • Meals
    5.00
  • Onsen & Bath
    4.92
  • Satisfaction
    4.85

*Reviews that have been translated from Japanese.*

*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*

Access Information

Address
Shizuoka Prefecture3288-105 Arai, Araicho, Kosai City
TEL:+81-53-523-7008

By Car
Approximately 2 minutes from Araibenten IC
Approximately 40 minutes from Hamamatsu Nishi IC

By Train
5 minutes by taxi from JR Bentenjima Station or Arai-machi Station

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
10 cars available outdoor
Valet service
Unavailable

Pickup and drop-off information
Unavailable

Frequently Asked Questions

Search by Theme

Find by tourist destination