I Looked Into Fuji Marriott Hotel Yamanakako
2026-08-30

This blog is mainly about researching campgrounds as part of my imaginary travels, but sometimes I also look into detours like 'let's skip camping today and go for a hotel vacation instead.' This time is one of those.
This time I looked into Fuji Marriott Hotel Yamanakako. Being part of the Marriott family, and located right on the shore of Lake Yamanaka, I found myself curious about what kind of hotel it is, so I decided to dig in.
With rooms that have their own hot spring bath and a restaurant with views of Mt. Fuji, this hotel left me with the impression that it would be quite comfortable for indoor types.
That said, the Rakuten Mobile signal came back with a C rating, so I want to be upfront about that.
I've summarized the details below.
What Kind of Place Is Fuji Marriott Hotel Yamanakako
This hotel is located in Yamanakako Village, Minamitsuru District, Yamanashi Prefecture, and is apparently operated by Forest Trust Hotels & Resorts Co., Ltd. Since it's part of the Marriott family of brands, it seems to support booking through Marriott Bonvoy as well. Reservations can apparently be made not only through the official website's booking system but also through external sites like Rakuten Travel, Jalan, and JTB. There was mention of phone reservations too, but the official site also had a notice about phone reservations ending, so the way bookings are accepted may have changed since then. It might be worth double-checking at the time of booking.
Check-in is at 3:00 PM and check-out at 11:00 AM, which seems like fairly standard timing for a hotel. There are 105 rooms in total, and apparently all of them are non-smoking. The service charge was reportedly changed from 10% to 13% starting in April 2024, so it might be wise to budget with a bit of a buffer in mind. The official site's main text doesn't list specific room rates, but checking external booking sites showed some plans starting in the ten-thousand-yen range per night. Since prices seem to vary by season and plan, I think the safest bet is to confirm the exact rate at the time of booking.

Hearing 'part of the Marriott family' makes me feel a bit on guard, but the combination with the shore of Lake Yamanaka felt unexpected to me.
The Hot Spring and Rooms: Points of Interest for an Indoor Type Like Me
Inside the hotel there's a large bath and open-air bath called the Yamanakako Onsen, split across the first and second floors. The open-air bath and sauna apparently swap between men's and women's use on alternating days. The water is a simple alkaline spring, and it's introduced as a 'beauty bath' or 'skin beauty bath' that's popular among women. Hours run from 6:00 AM to 10:00 AM and 1:30 PM to midnight, but about twice a month there's special cleaning that pushes the afternoon opening to 3:00 PM, so depending on your stay date it might be worth checking. I couldn't find anything in the official site's main text about whether day-use bathing is available or its price, and while some external sources mentioned it was possible, I'd treat that as something to confirm directly with the hotel.
Room types apparently cover quite a range, from Superior Rooms and Pure Wellness Rooms in twin and king configurations, to Japanese-style rooms with a 10-tatami-mat space, Japanese-Western combination rooms, and even Premier Rooms with their own hot spring bath built right into the room. These hot spring premier rooms are introduced as a way to have the Yamanakako Onsen all to yourself, which looks like a pretty appealing option for indoor types like me. There are also 4 dog-friendly rooms where you can stay with small dogs, though it seems you need to submit things like a vaccination certificate in advance. The beds in the Western-style rooms are apparently made by Simmons, which suggests some real attention to detail with the bedding.
The hotel also has a fitness room that's free to use, plus a tennis court and ping-pong tables. I saw some information suggesting the tennis court has a fee, but I couldn't confirm the details of pricing or hours. There also seem to be activities like bath bomb making available, which gives the impression that the hotel is designed so you can enjoy your time inside it as an experience in itself.
The Restaurant and Nearby Sightseeing Spots
At the first-floor restaurant, Grill & Dining G, you can apparently enjoy grilled and smoked dishes made with Yamanashi Prefecture ingredients like Fuji Sakura pork, Koshu beef, and Kai salmon. Pairing them with Yamanashi wine also seems to be recommended. Breakfast is a buffet running from 7:00 to 10:30 AM, while dinner starts at 6:00 PM Sunday through Friday and on holidays, but at 5:30 PM on Saturdays and certain other days, so it's worth remembering that the hours differ by day of the week. The lounge apparently also serves light meals like a Marriott burger.
Nearby attractions seem to be clustered fairly close together: about 5 minutes by car to Lake Yamanaka, about 15 minutes to Hana no Miyako Park, and about 20 minutes to Oshino Hakkai. If you venture a bit further, it's about 40 to 50 minutes by car to Fuji-Q Highland or Gotemba Premium Outlets, which gives the impression that it would be easy to combine a hotel stay with day trips to nearby sightseeing spots.
Rakuten Mobile Signal Conditions
When I checked this location's address using the official "my area coverage simulation" tool, the overall rating came back as C.
If you're planning to use data inside the hotel, it might be worth keeping this result in mind as one reference point. The experience could vary depending on where in the building you are and the time of day, so if this concerns you, checking in advance might give you some peace of mind.

Honestly, that C rating is a bit concerning to me. I also couldn't confirm whether there's in-hotel Wi-Fi from the official site, so once you arrive there might not be much to fall back on for connectivity.
Wrapping Up
Pulling it all together, Fuji Marriott Hotel Yamanakako left me with the impression of a hotel with real appeal as a place to relax on the shore of Lake Yamanaka, thanks to things like the premier rooms with their own hot spring bath and a restaurant where you can dine while looking out toward the base of Mt. Fuji. Taking a detour from camping plans and spending a relaxed stretch of time at a hotel like this once in a while feels like a nice option.
As for connectivity, the overall rating came back as C, so if that's a concern for you, it might be worth looking into as well. If you want to check for yourself, take a look at Rakuten Mobile's official tool.
This article includes a referral link for Rakuten Mobile's employee referral campaign. For details, please see our Disclaimer & Advertising Notice.



