The luxury hotel on the largest and most scenic beach in the prefecture

Diamond Setouchi Marine Hotel

The hotel sits adjacent to Shibukawa Beach


The Diamond Setouchi Marine Hotel is Tamano City’s only top-class Western-style hotel, and it sits adjacent to Shibukawa Beach, Okayama Prefecture’s largest and most scenic beach. The view from the hotel guest rooms on the sea side, the dining room, and the beach itself are fantastic year-round, and the Seto Ohashi bridgeline is visible in the distance (the Seto Ohashi Bridge is the longest two-tiered bridge in the world).

Beach lovers will enjoy staying at this hotel, as guests may enjoy the beach year-round through strolling, swimming, water sports, and a variety of beach sports.

The hotel is a popular venue for weddings and special events. Baby sitting servies are available for guests attending special events (fees apply; advanced reservation required).

The fift shop carries many regionally producted items, snacks, and drinks. The dining room features excellent buffet dining for lunch and dinner; regular menu items also available, including fresh seafood and other local delicacies.

For families travelling with small children, the hotel offers special “Toy Kingdom”-themed rooms, and special Toy Kingdom theme park ticket packages available; please inquire at time of reservation.


Tamano is a small city known mainly for Mitsui Engineering & Shipbuilding, which builds and maintenances some of the largest vessels on the sea. Tamano also has the prefecture’s largest public swimming beach at Shibukawa, where events such as national beach volleyball and beach soccer competitions are held in summer. The Eki-Higashi Artists’ Studios where visitors can see art being made.  Tamano City connects with Takamatsu City in Kagawa Prefecture and many of the surrounding islands via ferry, which is easily accessible from the downtown area.

Diamond Marine Setouchi Hotel

Diamond Marine Setouchi Hotel

Coast along the Seto Sea

Accommodation Services & Amenities

Internet Access (Lan, Wifi), Laundry Services (DIY, Drycleaning), Pool, Onsen (Tattoo Policy), Massage Service

Cancellation Policy

1) Detailed tour information & conditions will be given after application is made; please read and confirm the final itinerary before the departure date.
2) Reservations: Fill out the application contact form; application is complete upon payment. Reservations accepted by phone, mail, fax, online, or other communicative methods. The contract is not valid at time of reservation; the customer will be asked to submit an application form and payment within 3 days from time of reservation. If application form and payment are not submitted within the term, the reservation shall be considered void.
3) Items not included in tour price: Transportation costs not included in itinerary, optional tour fees, excess baggage fees, any fees of a personal nature (phone bills, meal costs, etc.) Items excluded from the tour will be stated in the tour information.
4) Cancellation fees: When the application is cancelled by the customer or when payment has not been made by the specified date, Ryobi Tours shall receive a percentage of the per person tour fee as a cancellation fee, or a penalty fee. Differences in room charges that result from one person in a group cancelling shall be charged to the participating person(s).

Cancellation Date Up to 21 days prior 20-8 days prior 7-2 days prior Day prior to start of tour Day of tour After start of tour/non-participation with no contact
Cancellation Fee No charge 20% of tour fee 30% of tour fee 40% of tour fee 50% of tour fee 100% of tour fee