2026.04.28
(News Release) A new brand, "GRAND MONday Resort," is born. "GRAND MONday Resort TOKYO BAY MAIHAMA" is Maihama's only urban resort with all oceanfront rooms and a lagoon pool that can be enjoyed all year round.
Located just 30 minutes from the city center, this summer sees the opening of a new resort designed to be an in itself. It boasts a prime location overlooking Tokyo Bay, all oceanfront rooms, a lagoon pool enjoyable year-round, and dining options offering international cuisine.

※1 自社調べ 2026年4月現在の公開情報に基づきます。

■New brand "GRAND MONday Resort"
An experiential destination resort where the stay itself becomes the purpose of the trip.
It is located close to the city, but away from the daily flow of life, offering a stay where you can surrender yourself to a relaxing time. GRAND MONday The resort's subtle attention to detail and environmental considerations, which are unique to Japan and have been cherished by the " Resort" brand, subtly support a sense of comfort. GRAND MONday Resort" is a new resort experience where the time spent itself has value.
■GRAND MONday Resort が提供する舞浜での新しい滞在

1. "MAIHAMA LAGOON (Lagoon Pool)," an outdoor pool that can be enjoyed all year round.
外気温に合わせて水温調整可能な一年中楽しめる屋外プール。日中は陽光に包まれた開放的な都会のオアシス、夕刻は東京湾の上空に広がる夕映えを仰ぎ、夜はライトアップが織りなす幻想的な大人の雰囲気に。バレルサウナやジェットバス、キッズプールやBBQエリアも備え、大人も子供も楽しめるリゾート体験を提供します。


Rooftop infinity pool usage fee

※1 ご予約期間:2026年4月28日(火)~5月31日(日)/ ご宿泊期間:2026年7月18日(土)~10月31日(土)
[Barrel Sauna]
プールサイドには北欧発ラグジュアリーサウナブランドの、高機能かつ洗練されたデザイン性を有する本格的なバレルサウナを設置。天然木を使用した自然のぬくもりに包まれる空間で、心と身体を整える、深いリラクゼーションのひとときをお過ごしください。

2. Multinational restaurant "ISLE - Pool Club Restaurant -"
“世界を旅するように食を愉しむ”をコンセプトに、多国籍料理を提供するオールデイダイニング。アメリカンスタイルの豪快なグリル料理をはじめ、インドのタンドリーチキン、トルコのシシカバブ、メキシコのタコス、モロッコのタジン、ベトナムのフォーなど世界各国の味わいを多彩に揃えております。一皿ごとにまるで世界を旅するような特別な食体験をお楽しみください。
(営業時間 6:30〜24:00予定)





ナイトタイム(22:00〜24:00)
3. Poolside barbecue
海風を感じながら手ぶらで楽しめる本格BBQ体験。お肉を中心とした王道プラン、シーフードも加えたボリューム満点プラン、さらに飲み放題プランもご用意。6名用テーブル2台・8名用テーブル2台を備えており、ご家族や友人と気軽に楽しめる屋外ダイニングです。

4. VIP Lounge
VIPラウンジアクセス付客室を予約されたお客様限定の特別な空間。時間帯ごとに変化する景色とともに、ライトミール・カクテルなどをご提供します。
(営業時間:10:00〜23:30予定)

5. Public bath and sauna
ホテルは「泊まる場所」から「満たされる場所」へ。当施設のサウナは、スゴイサウナ監修により日本の湯治思想を取り入れた低温設計が特長。室温65℃・湿度60%・育成光線(遠赤外線)60℃の黄金比により、遠赤外線で身体の深部まで温め、効率的な発汗と持続的な“ととのい”を実現。希少な富士山溶岩プレートを用いた独自技術と快適な動線設計で、心身を満たすリトリート体験を提供します。


■舞浜エリア唯一の全室オーシャンフロントカテゴリー(海が正面に見える部屋)
ニーズに合わせて選べる多彩な客室バリエーション
滞在そのものが体験になります。
すべての客室がオーシャンフロントかつリゾート感のある空間デザイン。
温かみのある自然素材により、高級感の中に安らぎを感じられます。
・VIPオーシャンフロントスイート (50.88㎡)


・オーシャンフロントパークサイドデラックスコーナー (36.11㎡)


・オーシャンフロントスーペリアツイン (25.44㎡)


Shuttle bus service

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Facility Overview
施設名:GRAND MONday Resort 東京ベイ舞浜所在地:千葉県浦安市千鳥15-9
客室数:全140室
グランドオープン:2026年7月18日(土)
公式サイト:
https://medakyaya.mom/resort/maihama/
■ What kind of hotels are "hotel MONday" and "MONday Apart"?
The "hotel MONday Group" has 28 facilities in Tokyo (including some of Tokyo's leading business areas such as Toyosu, Nishikasai, Nihonbashi, and Hamamatsucho, as well as areas that retain the old downtown culture such as Akihabara and UENO Okachimachi), 5 facilities in Kyoto (including areas with convenient access to Kyoto Station and tourist attractions such as Kyoto Station, Karasuma Nijo, and Marutamachi), and 1 facility in Osaka (in Osaka Namba, an area said to be Japan's second largest city where history, culture, gourmet food, and entertainment converge).The MONday Apart series aims to be an "apartment hotel" where guests can feel like they are "living" there. In addition to its convenient location for sightseeing and business, the hotel boasts excellent facilities.
We offer a range of services to ensure a comfortable stay for our guests, including rooms that are simple yet functional, reflecting Japanese aesthetics, as well as amenities for long-term stays such as a self-catering kitchen and an automatic washer/dryer.
Trip Advisor Award Winner
TripAdvisor, a travel review website that provides services in 28 languages and covers 49 countries and regions around the world, has a ranking system based on the reviews of its guests. hotel MONday Group, operated by JHAT Co., Ltd., has facilities that have received the "Best of the Best" award, which is given to only the top 1% of facilities in the world, and has received high praise from guests.■ Booking.com Award Winner (28 properties)
Booking.com, one of the world's largest accommodation booking sites, has established the "Traveller Review Awards" to recognize establishments that provide outstanding hospitality based on guest reviews. hotel MONday Group has 28 properties that have received this award, earning high praise from guests around the world.■ Winner of the "Klook" Best of Japan Hotel category award.
From among the domestic accommodations listed on "Klook," which handles online bookings for travel activities and local tours, only the top six companies with particularly outstanding performance are selected. "hotel MONday Group," operated by JHAT Co., Ltd., was selected as one of them. This award is a result of the recognition of the value of stays that have been chosen by customers both domestically and internationally, and we will continue to strive to provide comfortable accommodation experiences in the future.JHAT Co., Ltd.
[Contact information for inquiries regarding this press release]JHAT Co., Ltd. Contact Person: Kazeoka
TEL: 03-6453-0144
FAX: 03-6453-0954
Email: promotion_gp@jhat-m.com
https://prtimes.jp/main/html/rd/p/000000135.000056759.html


