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TOJI.ba JOURNAL — Sauna for Beginners

Sauna for beginners:
how many minutes, and what about the cold bath

2026.08.24

Two questions come up again and again from people trying a sauna for the first time: how many minutes do you stay in, and do you have to take the cold bath. This article answers both, using the order the staff at The TOJI.ba MATSUKAWAKAN suggest.

The Forest Sauna has two cabins, a mid-temperature herbal room at 85C and a very hot room at 110C. You can start with either one and go at your own pace.

The full step-by-step is on the How to use the sauna page. Here we keep it to the three things beginners worry about: time, the cold bath and choosing a temperature.

How many minutes: ten to twelve in the 110C room

How long should you stay in the sauna? For first-timers, this is the hardest part to judge.

At the Forest Sauna, the staff suggest about ten to twelve minutes in the 110C room as a first guide.

Rather than going straight in, warm up in the indoor bath first, then drink some water before you enter.

About two minutes before you leave, add a loyly. That is the way the staff here suggest.

The 110C room is set up so that everyone, from beginners to regulars, gets there.

85C or 110C: which room to start with

The Forest Sauna has two rooms, an 85C mid-temperature herbal sauna and a 110C very hot sauna.

The 85C room is blended with a scent chosen for the day, and it is made for taking your time in the steam.

The steam might carry white birch or roasted green tea, depending on the day.

The 85C mid-temperature sauna room at the Forest Sauna

The 110C room is set up so that everyone, from beginners to regulars, gets there.

In the order the staff suggest, you enter the 110C room first and take the 85C room later. You can read more on the The Forest Sauna page.

The cold bath: 120cm deep, fed by mountain water

Not sure about the cold bath? Here is exactly what you are stepping into.

The cold bath at the Forest Sauna is 120cm deep and fed with mountain water.

It is both free-flowing and filtered.

The cold bath at the Forest Sauna

In the order the staff suggest, you take the cold bath after the 110C room, then rest outdoors.

Resting outdoors: three kinds of seats to choose

After the sauna and the cold bath, you rest outdoors and let your body settle.

The open-air rest area at the Forest Sauna has three kinds of places to sit.

There is a lie-down space where you look straight up at the sky, a chair with an adjustable footrest, and a deep reclining chair, and you can use whichever you like.

Rest chairs in the open-air rest area at the Forest Sauna

There are more than ten rest chairs, and a fire is lit from 20:00.

The full flow: three rounds at the Forest Sauna

Here is the whole thing, put together, the way the staff suggest it for first-timers.

Warm up in the indoor bath and drink water, then move through the 110C room, the cold bath, the outdoor rest and the 85C room, and repeat that for three rounds.

StepWhat you do
1Warm up in the indoor bath and drink water
2Ten to twelve minutes in the 110C room
3A loyly about two minutes before you leave
4The 120cm cold bath
5Rest outdoors
6The 85C room

These six steps make one round, and three rounds is the guide.

Self-loyly is allowed at the Forest Sauna, so you can adjust the steam yourself.

If it is your first time, keeping this order in mind means you can enjoy it without rushing on the day.

Booking and what to bring for your first visit

You wear a swimsuit in the sauna, and swimsuits and ponchos can be rented on the day.

Day-use sauna sessions must be booked in advance, so please reserve before you arrive.

Please do not use the sauna straight after drinking, and if you are pregnant or have a condition such as high blood pressure, please check with a doctor first.

Guests with tattoos are welcome in all of the baths at The TOJI.ba MATSUKAWAKAN.

For day-use details see the Day-use sauna page, and for an overview see About the saunas.

Frequently asked questions

How many minutes should I stay in the sauna?
At the Forest Sauna, about ten to twelve minutes in the 110C room is the guide. Warm up in the indoor bath and drink water first, and add a loyly about two minutes before you leave.
I am not good with cold water. What is the cold bath like?
The cold bath at the Forest Sauna is 120cm deep, fed with mountain water, and both free-flowing and filtered. In the order the staff suggest, you take it after the 110C room and then rest outdoors.
Should a first-timer start with 85C or 110C?
The 85C room is blended with a scent for the day for slow time in the steam, while the 110C room is set up so everyone gets there. In the order the staff suggest, you enter the 110C room first and take the 85C room later.
Do I need to book, and what should I bring?
Day-use sauna sessions must be booked in advance, so please reserve before you visit. You wear a swimsuit, and swimsuits and ponchos can be rented on the day.

Choosing a sauna ryokan in Nagano

If you are looking for a place to stay with a sauna in Nagano, see How to choose a sauna in Nagano. It compares what to look for when you pick one.

See the day-use onsen See the Takayama Village itinerary

Reservation

The Forest Sauna is open for day use too

The Forest Sauna at The TOJI.ba MATSUKAWAKAN is open both for day use and for staying guests.
Day-use bathing runs from 11:00 to 20:00 at 650 yen per person, with no reservation needed, though day-use sauna sessions must be booked in advance.
Prices are subject to change; please check before you visit.

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