Grand Prince Hotel Hiroshima (23-1 Motoujina-machi, Minami-ku, Hiroshima), a resort surrounded by sky and sea, is offering a "Pool & Lunch Plan to Enjoy the Lingering Summer Heat" from Tuesday, September 1 to Wednesday, September 23 (a holiday), 2026, that pairs a hotel lunch with use of the outdoor pool and onsen.
The hotel's outdoor pool usually closes at the end of August each year. This year, however, with severe lingering summer heat expected to continue into September, the pool's operating period is being extended through Wednesday, September 23 (a holiday).
According to the one-month forecast issued by the Japan Meteorological Agency on August 20, 2026, there is a 70% chance that average temperatures in western Japan will be above normal for the month starting August 22, and a 60% chance they will be above normal for the two weeks starting September 5 — pointing to continued severe heat into September.*1
Under the plan, guests choose a lunch from one of three restaurants — the 23rd-floor "Sky Lounge Top of Hiroshima," the 22nd-floor "Steak & Seafood Boston," or the 21st-floor "Chinese Restaurant Riho" — and afterward can use the outdoor pool and Hiroshima Onsen "Seto no Yu" as day guests, both of which are normally reserved for overnight guests only.
After a refreshing time at the outdoor pool overlooking the Seto Inland Sea, guests can unwind in the onsen. Along with lunch, it's a chance to enjoy the hotel's resort atmosphere for a day.
*1 Japan Meteorological Agency, "One-Month Forecast" (issued August 20, 2026; forecast period: August 22 – September 21, 2026)
Plan Overview
Period: Tuesday, September 1 – Wednesday, September 23 (a holiday), 2026
Hours (Lunch): Follows each restaurant's own operating hours
Hours (Pool & Onsen): 1:00 PM – 5:00 PM
Includes: Lunch plus use of the outdoor pool and Hiroshima Onsen "Seto no Yu"
- Guests choose one lunch from the three restaurants (① – ③) below.
- The outdoor pool and onsen may only be used after the meal.
| Restaurant | Price (per person) |
|---|---|
| ① 23F Sky Lounge Top of Hiroshima | Adult ¥6,000 / Ages 7–12 ¥3,000 / Ages 4–6 ¥2,500 |
| ② 22F Steak & Seafood Boston | Adult ¥4,000 / Ages 4–12 ¥3,000 |
| ③ 21F Chinese Restaurant Riho | Adult ¥4,000 / Ages 4–12 ¥3,000 |
Prices include the lunch, use of the outdoor pool and onsen, service charge, and consumption tax.
- Food allergy accommodations are limited to eight items (shrimp, crab, walnut, wheat, buckwheat, egg, milk, and peanut). Guests who need this accommodation should notify the hotel in advance.
- Children age 3 and under cannot use the plan.
- Elementary-school-age children and younger cannot use the plan unaccompanied.
- The outdoor pool may close depending on weather conditions.
- All images are for illustrative purposes only.
Restaurant and Lunch Menu Details
① 23F Sky Lounge Top of Hiroshima
Menu: Moomin Seaside Lunch Buffet
Hours: 12:00 PM – 3:00 PM (L.O. 2:30 PM)
- Weekends and holidays only: 90-minute seating.
- Food service ends at 2:30 PM.
Guests can enjoy all-you-can-eat sweets and breads themed on Moomin and friends, along with Finnish regional dishes. The venue also includes photo spots that capture the world of Moomin.
② 22F Steak & Seafood Boston
Menu: Pasta Lunch
Hours: 12:00 PM – 3:00 PM (L.O. 2:30 PM)
- Weekends and holidays: opens 11:30 AM.
- Closed Wednesdays.
A pasta-centered lunch set, served with dessert and coffee for a relaxed midday meal.
③ 21F Chinese Restaurant Riho
Menu: Noodle and Rice Set
Hours: Friday – Sunday, 12:00 PM – 3:00 PM (L.O. 2:30 PM)
- Weekends and holidays: opens 11:30 AM.
Guests can choose from five noodle and rice dishes, including Riho's signature char siu and shredded scallion soba in broth, and its five-ingredient chilled noodles.
Outdoor Pool and Hiroshima Onsen "Seto no Yu"
The outdoor pool and onsen, both normally reserved for overnight guests, are open to day guests exclusively through this plan.
Outdoor Pool
An open-air pool with the Seto Inland Sea spread out just in front, offering sea views that sparkle in the sunlight and a sea breeze, in what is a prime location. Pool bath towels are provided.
Hiroshima Onsen "Seto no Yu"
A bathing facility featuring an open-air bath overlooking the changing scenery of the Seto Inland Sea, along with an indoor bath, jet bath, and sauna. After the pool, guests can relax while taking in views of the Seto Inland Sea. Bath towels and face towels are provided.
For details: https://www.princehotels.co.jp/hiroshima/plan/special/pool-restaurant_2026
