Century Marina Hakodate

センチュリーマリーナ函館

Lodging

Hokkaido·Hokkaido

Day Use

Yes

06:00–23:59

Day-use reception hours change by a monthly calendar: normal days it's open 6:00 to 24:00, but on reduced-service days it's only 6:00 to 14:00, so it's worth checking the current month's schedule before you go.

¥2,000

Day-use bathing is ¥2,000 for an adult and ¥1,000 for a child, tax included. Combo plans add a meal: breakfast buffet plus bathing is ¥5,000 adult / ¥2,500 child, the Kitanoji (北乃路) breakfast course plus bathing is ¥4,000 for adult and child alike, and breakfast buffet alone with no bath is ¥4,000 adult / ¥2,000 child.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Capabilities

Room OnsenYes

Private onsen bath in guest rooms, for overnight guests only

Applies to Royal-floor suites and one Dog Lovers room; not all 20 room types have it.

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

TattooWith Conditions

Allows entry with visible tattoos

Allowed if visitors follow the hotel's own tattoo rules; the linked detail page was not crawled.

KidsYes

Welcomes children and families

Child day-use bathing price is offered; no stated age restriction on bath entry.

DiningYes

Restaurant or dining open to visitors (not just hotel meal plans)

Breakfast buffet can be booked as a stand-alone day-use plan without lodging, so it counts as dining open to visitors.

Rest AreaYes

Relaxation space for after bathing

ParkingYes

On-site or nearby parking available

Paid: ¥1,000/night per car, 113 spaces, open-air.

大手町温泉

Otemachi Onsen

Operated by · 札幌国際観光株式会社

塩

Chloride

Color: colorless and clear
Taste: with salty and bitter notes
Odor: odorless

Sodium Chloride spring

pH 6.8NeutralStrong salt

Composition fingerprint27.6 g/kg dissolved · Hypertonic

Na⁺75

Mg²⁺16

Cl⁻90

◀ CationsAnions ▶

Sodium Na⁺: salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻: table-salt anion — coats the skin and holds heat in.

Known good for

Warmingcold sensitivity
Aches & jointsstiff shoulders
Cutsminor wounds

A sodium chloride spring classified as 'kyoen' (strong-salt) — chloride accounts for some 90% of the anion balance and total dissolved solids reach 27.6 g/kg, approaching ocean salinity. Salty and faintly bitter on the tongue, it leaves a noticeable mineral film on the skin and a long-lasting warmth after the bath.

Sampled at wellhead·Analyzed May 12, 2016·Cert no. 107号

Explore the water

Views

Sea

Mountains

City

Highlights

Steam Sauna

About

Century Marina Hakodate is a big waterfront hotel near Hakodate Station and the port, with a natural hot-spring bath up on the top floors. The indoor bath is large, and the rooftop open-air bath is built infinity-style, so the water's edge seems to blend right into the view over Hakodate Bay and Mt. Hakodate. The spring water itself is salty and warming. There's a men's medium-heat steam sauna and a women's aroma-mist salt sauna, plus a lounge afterward for drinks and soft-serve while you cool down. A handful of the top-floor suites have their own onsen view-bath, though most of the twenty room types don't. Day-use bathing is open to non-guests too, alongside regular overnight stays.

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3 months ago· edited

There is a day-use option. The men's bath includes a mizuburo (cold water bath). There is also a hammam. The rotenburo (outdoor bath) is large and scenic, but the water is plain (although in the hotel's photos, the large baths also clearly have brown water….😶). The mineral water in the small baths for 2-3 people: one is inside, and the other is outside but behind a fence (they said these are kakenagashi, meaning continuously flowing water). The water is brown, odorless, salty, and quite hot (feels like 43°C or higher). The hotel itself has a luxurious and delicious buffet. The location is central. The rooms are well thought out. The staff are lovely)))

Last updated July 30, 2026

Century Marina Hakodate

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Day Use

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