“We want to visit Lake Toya as a three-generation family.” “I can’t find a place where 10 of us from work can stay together.”—finding lodging for a large group is surprisingly hard at hotels, where rooms end up split apart. In this article, Kamonoya, which runs whole-house rentals sleeping up to 20 guests in the Lake Toya area, explains the key points for choosing lodging for a large group.

Why a whole-house rental suits large-group trips better than a hotel
1. Everyone can be in the same space
A group that would be split into 3–4 rooms at a hotel can all gather in the living room of a whole-house rental. For a three-generation trip, grandparents and grandchildren spending time under the same roof is the greatest value of all.
2. The per-person price tends to be lower
Whole-house rentals are basically priced “per house.” The more people, the lower the unit price per person. For example, at Lake Toya Base (sleeps 20, from ¥30,000/night), the more people who stay, the lighter each person’s share becomes.
3. Free dining with a kitchen and BBQ
Eating out with a large group means hunting for a restaurant and getting everyone there. With a kitchen-equipped whole-house rental, you can buy ingredients at the local supermarket and cook together, or have a BBQ in the yard in summer. For where to buy ingredients and local food tips, see our Lake Toya food guide.
Kamonoya properties by group size
Groups of up to about 10

- Toya House (up to 8) — in the onsen town center, BBQ available. From ¥24,000/night.
- Toya INN-West (up to 9) — a central lodging with a wood stove. From ¥25,000/night.
- Cloud9 Toya (up to 11) — a hideaway in a quiet setting. From ¥27,000/night.
- Toya INN-East (up to 11) — a large screen for movies together. From ¥30,000/night.
Large groups of 15+ and three generations
- Toya Farmer’s House (up to 18) — a large whole-house rental with a fireplace. From ¥25,000/night.
- Lake Toya Base (up to 20) — a fireplace and large screen, an extraordinary large space. Popular for three-generation trips. From ¥30,000/night.
Checkpoints to avoid mistakes when booking for a large group
- Number and mix of beds — check the bed/futon configuration, not just the capacity.
- Number of bathrooms and sinks — multiple toilets and washbasins prevent a morning bottleneck.
- Parking spaces — check if you are traveling in several cars (all Kamonoya properties offer parking).
- Cancellation policy — with large groups prone to changes in numbers, confirm this in advance.
Book early—the official site is the best value
Places that sleep 10 or more are limited even in the Lake Toya area, so they fill early on long weekends and summer holidays. Booking directly through Kamonoya’s official site is the best-value official rate, with no commission (best-rate guarantee). Once your dates are set, check the availability search.
FAQ
Q. From how many people does it become “private”?
A. All Kamonoya properties are whole-house rentals (one group only). Whether 2 or 20 people, you never share space with other guests.
Q. How are children and infants counted?
A. It varies by property and plan. When booking, specify adults, children (ages 4–12), and infants (3 and under) in the guest selection.
Q. Where can we buy ingredients?
A. There are supermarkets and convenience stores in and around the Lake Toya onsen town. In summer, local vegetable stands are recommended too.
Considering a longer stay? The longer you stay, the better the value at our official rates. Please check availability from the availability search.