The Best Hotels with a Pool in Oiwake from ￥19,350 in 2026

A golf course with a mountain in the background.

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Our top choices for Oiwake hotels with a pool

Down comforters, in-room safe, WiFi, bed sheets

1. ANA Holiday Inn Resort Karuizawa by IHG

Naganohara

Enjoy indoor pools, golf views, and mineral hot springs amid mountain scenery all year.

￥19,955

￥21,950 total

Sep 3 - Sep 4

Premium bedding, in-room safe, WiFi (free), individually decorated

Villa A -SPA- (Modern style) One private house with pool, sauna, & outdoor hot spring, Non Smoking | Private kitchen | Full-size fridge, microwave, oven, dishwasher

2. Villa Metsä Karuizawa

Karuizawa

Outdoor shower sanctuary in garden lodge where hot springs and luxury converge.

￥82,800

￥91,080 total

Sep 10 - Sep 11

Two Bedroom Suite, with Terrace, Non Smoking (Please include all persons in your reservation) | In-room safe, blackout drapes, iron/ironing board (on request)

Superior Twin Room, with Open Air Bath, Non Smoking (Please include all persons in your reservation) | Bathroom | Hair dryer, slippers, bidet, towels

3. Karuizawa Club Hotel Karuizawa 1130 / Hewitt Resort

Tsumagoi

Seasonal hot springs pool paradise with an outdoor tennis court and serene resort atmosphere in Karuizawa.

￥17,964

￥22,235 total

Sep 15 - Sep 16

Superior Junior Suite Triple | Desk, WiFi (free)

4. Estivant Club

Tsumagoi

Splash into mountain luxury at this Karuizawa retreat with indoor/outdoor pool and spa services.

￥17,305

￥19,350 total

Sep 6 - Sep 7

5. Kusatsu Onsen Hotel Sakurai

Kusatsu

Seasonal outdoor pool and children's splash zone set amid Japanese gardens and hot springs.

￥39,744

￥44,184 total

Aug 31 - Sep 1

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Choose what matters most at hotels with a pool in Oiwake

Breakfast included

4 stars

5 stars

Hot tub

Spa

Top Oiwake Hotel Reviews

Kusatsu Onsen Hotel Sakurai

8/10 Good

"The property was nice and modern. All amenities were in working order. Location is further from center of town. The town is also deserted, almost. Nothing really around. Onsen water is nice as well as the low temperature sauna."

Karuizawa Club Hotel Karuizawa 1130 / Hewitt Resort

10/10 Excellent

"Large rooms, kind staff. Amazing price"

Frequently asked questions

What are some accommodations with pools in Oiwake?

SANU 2nd Home Karuizawa 1st: Features a children's pool, an indoor pool, and spa services. Karuizawa Prince Hotel West: Provides 2 restaurants, an outdoor pool, and a full-service spa. Karuizawa Hotel Longing House: Features a children's pool, a seasonal outdoor pool, and 4 restaurants.

What is there to see and do in Oiwake?

Surround yourself with nature at Joshin'etsu-kogen National Park. Discover sights such as Hori Tatsuo Memorial Museum during your stay.

When is the best time to book a hotel with a pool in Oiwake?

Taking into account the local weather in Oiwake is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and July with an average temp of 67°F, while the coldest months are January and February with an average of 31°F. The rainiest months in Oiwake are July, August, June, and September, with each month seeing an average of 10 inches of rainfall.

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