
Kosai Holidays
- Plan, book, travel with confidence
- Better togetherSave up to €185 when you book a flight and hotel together*
- Find the right fitWith over 300,000 hotels worldwide, it's easy to create a perfect package
- Rest easyPlan, book, and manage your trip all in one place
Kosai Beach Holiday
Forget about the stresses of daily life and let your mind, body and soul unwind on your Kosai holiday. There's nothing more invigorating than a cool ocean breeze and the soothing sound of waves crashing onto the shore. Organise your trip to Kosai the easy way by locking in one of our Kosai holiday packages. Many people decide to base themselves near Arai Benten Beach, a local highlight only 6 kilometres from the city centre.
Things You Should Know About Kosai
- If you've been dreaming of that seaside lifestyle, check out our Kosai beach hotels. Water views and salty sea air — what more could you want?
- Our hotels, like The Villa Hamanako and Kuretake Inn Hamanako, are a hit with visitors of all types. Check out the facilities and get ready for your holiday in Kosai!
- Around 43,700 people live in Kosai. If you'd like some tips about what to see and do around these parts, why not chat to a couple of the locals? Our Kosai things to do page is also a handy source of information.
- Kosai holiday deals are one of the best ways to save on incredible experiences. Some ideas, such as Arai Benten Beach, Myoryuji Temple and Ogaji Temple, should be at the very top of your to-do list.
Top hotels in Kosai

Hotel Route Inn Hamanako
1049-1, Komi Kosai Shizuoka-ken
Fully refundableReserve now, pay when you stay
The price is €62 per night from 25 Dec to 26 Dec
€62
25 Dec - 26 Dec
8/10 Very Good! (184 reviews)
Nothing any defect, but just all facilities could be aged. If possible, and if I can suggest to you that it might be better some update.
Reviewed on 17 Nov 2025

Tabist Kosai Hamanako no Yado
1253-1 Ochiba Kosai Shizuoka
Fully refundableReserve now, pay when you stay
The price is €26 per night from 14 Dec to 15 Dec
€26
14 Dec - 15 Dec
7/10 Good! (45 reviews)
Good overall
It's was really good, I forgot to ask for an early check-in but theh saw me sitting outside waiting let me check in early which was super nice, I did nock to ask if I could leave my bags but the only staff there at the time was deaf, so that's okay. The room was good and comfy and warm. And the bath ...
Reviewed on 10 Feb 2025

Hotel Associa Toyohashi
Nishijuku-cho, Hanada-cho Toyohashi Aichi-ken
The price is €49 per night from 14 Dec to 15 Dec
€49
14 Dec - 15 Dec
9/10 Wonderful! (993 reviews)
Good
Reviewed on 13 Nov 2025
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages.
