函館国際ホテルはこだてこくさいホテル
Uses natural hot spring water
Open-air outdoor bath
Outdoor bath is in the men's bath only; the women's bath is an indoor observation bath overlooking Mt. Hakodate and the port.
Enclosed indoor bathing area
Dry heat sauna room
Private bath available for day-use visitors or hotel guests to reserve
Shared bathing area for all genders
Baths are gender-separated (men's/women's), no mixed bathing offered.
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Relaxation space for after bathing
Sea
MountainsHakodate Kokusai Hotel is a big waterfront hotel a short walk from JR Hakodate Station and the bay's red-brick warehouse district, with its own natural hot spring, Shiomi-no-yu (汐見の湯), on the 13th floor. The water is genuinely salty (you can taste it), and the bath looks out over Hakodate port and the mountain. Only the men's side has an outdoor tub; the women's side is an indoor bath with the same view. There's no sauna. With three wings (West, Main, East), several restaurants from teppanyaki to a sky lounge bar, and a bath that hands out free popsicles on the way out, it feels less like a ryokan and more like a proper city hotel that happens to have real onsen water on top.
Loading map…
Reserve or check availability on a booking site.
Alexey Lopato 🐻
函館国際ホテル There are indoor and outdoor baths (the outdoor one seems to be men-only). You can see the night cityscape and even Mount Hakodate if you go to the far corner of the rotenburo. I thought they had a sauna, but no — that's a shame. On the first day the rotenburo water wasn't hot, but they cranked it up on day two. Overall 40.5-41 in both. A nice perk: unlimited ikura at breakfast.
Last updated July 16, 2026