
Kosai Holidays from AU$2,946
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Your Kosai Holiday
Well known for its coastal scenery and unspoiled nature, Kosai is a fantastic getaway destination. Book one of our Kosai holiday packages and enjoy all that this impressive city has to offer. If your trip to Kosai includes a little sightseeing, drop by much-loved attractions like Arai Benten Beach, Arai Beach and Maisaka-shuku Waki-Honjin. Don't put off visiting this destination any longer. Your ultimate Kosai holiday is just a few clicks away with Expedia.
The Latest Kosai Holiday Deals

Hotel LiVEMAX Kofu
Reviewed on 12 Mar 2022

Lodge Atelier
Reviewed on 26 July 2025

Lodge Kent
Reviewed on 15 Feb 2025


Grand Mercure Yatsugatake Resort & Spa
Reviewed on 2 Oct 2025
Kosai Holiday
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.
Kosai Essential Information
Language | Japanese |
|---|---|
Currency | Japanese yens |
Local Welcome | Konnichiwa |
Local Goodbye | Sayōnara |
Population | 43,700 |
Max Temp Winter | 10ºC |
Max Temp Summer | 27ºC |
Top Sights | Hamanako Palpal Theme Park, Hamamatsu Castle and Hamamatsu City Zoo |
Our pick of the best Kosai Hotel Deals

Hotel Route Inn Hamanako
2回目の滞在です。ホテルの清掃は行き届いて綺麗、設備に不満は一切ありません。スタッフの方々は感じ良く親切です、一階の大浴場?はラジウム温泉で、朝早くから、深夜まで入浴出来るので15時にチェックインして、直ぐに温泉でのんびり出来ます。夕食は隣りの居酒屋(まぐろや)は安価でボリュームもあり美味しいので、今回も利用しました。来年も使わせていただきます。
Reviewed on 5 Oct 2025

Tabist Kosai Hamanako no Yado
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

Richmond Hotel Hamamatsu
Rightly recommended!
Reviewed on 10 Oct 2025











