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.
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.
Hasunuma Ocean Park is 5.6 mi (9 km) from central Sanmu, why not stop by during your stay. If you like Hasunuma Ocean Park, you'll love Lake Hakkaku, just a short drive away.
If you're looking for the flexibility to change your plans to Sanmu, most properties provide refundable* bookable rates. You can see these properties by searching our site and using the "fully refundable" filter to narrow the results down.
What will the weather in Sanmu be like during my vacation?
August and July are typically the warmest months in Sanmu when the average temp is 76°F. January and February are the coldest months when the average temperature is 47°F. October and September are the months with the most rain.
Why should I book my Sanmu accommodation with Hotels.com?
There are lots of reasons to book your Sanmu trip with us: our free cancellations on selected hotels gives you flexibility, and with One Key™, our rewards program, you will be able to earn and use OneKeyCash™* on all eligible bookings such as hotels, car rentals, flights, vacation rentals and more on Hotels.com, Expedia and Vrbo.
