A stone lantern, a pine tree, and a coastal view.

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Check availability on Kosai All-inclusive Hotel

Tonight
Sep 21 - Sep 22
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Sep 22 - Sep 23
This weekend
Sep 25 - Sep 27
Next weekend
Oct 2 - Oct 4

Our top choices for Kosai all inclusive hotels

Classic Suite, Multiple Beds (Japanese Western Style) | In-room safe, iron/ironing board (on request), WiFi (free), bed sheets
Family Room, Multiple Beds | In-room safe, iron/ironing board (on request), WiFi (free), bed sheets
Classic Suite, 2 Twin Beds | In-room safe, iron/ironing board (on request), WiFi (free), bed sheets
Restaurant

1. Grand Mercure Lake Hamana Resort & Spa

Grand Mercure Lake Hamana Resort & Spa
Nishi Ward
  • Lakeside all-inclusive resort delivers dining, seasonal pools, and spa treatments to make vacations effortless.
￥8,182
￥10,200 total
Oct 7 - Oct 8
Grand Mercure Lake Hamana Resort & Spa
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Choose what matters most at all-inclusive hotels in Kosai

5 stars
4 stars
Adult-only
Pool
Family-friendly

Top Kosai Hotel Reviews

Frequently asked questions

Looking for Kosai all-inclusive resorts?
Kosai offers a host of things to see and do such as Lake Hamana and Arai Beach. View our all-inclusive resorts where you can enjoy a good selection of amenities like entertainment, kid's clubs, and of course food and beverages all included in your room rate. Many of our all-inclusive hotels also feature activities such as golf, yoga, water sports, and more, which you can enjoy without any additional expense.
What is there to do near my all-inclusive resort in Kosai?
If you want to explore the area around your all-inclusive resort, visit Lake Hamana and Arai Beach and see why travelers like Kosai! Other attractions include Arai Benten Beach, Myoryuji Temple, and Ogaji Temple.
When's the best time for an all-inclusive stay in Kosai?
There's nothing like an all-inclusive vacation in Kosai to revive you, especially when you know what to expect from the elements. Here's some info to help you choose when to book: The hottest months are usually August and July with an average temp of 76°F, while the coldest months are January and February with an average of 46°F. January and December are the driest months while July and June are the rainiest months.

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