What to pack for hot spring and sauna trips varies slightly depending on the type of facility you visit. A ryokan that provides towels and in-house robes requires different preparation than a day-use sauna, so start by deciding “where you’re going” to avoid mistakes.

This article organizes hot spring and sauna trip packing into essentials, handy extras, additional items for overnight stays, and seasonal considerations.

What to check first

Before thinking about what to bring, check what the facility provides. Towels, shampoo, body soap, in-house robes, sauna mats, and hairdryers may be free, available for rental, or sold, depending on the facility.

Sauna mats in particular can be either provided or expected to be brought by guests. Since it’s not always mandatory to bring your own, the safest approach is to check the facility’s official guidance before you leave.

Essentials

At minimum, the following items will prevent most problems:

• Change of clothes
• Towels
• Drink or cash for hydration
• Waterproof bag for wet items
• Basic skincare and toiletries

Even for day trips, towels and hydration are especially important. If you plan to use the sauna, you may sweat far more than you expect, so don’t underestimate the need for fluids.

How many towels do you need?

A small hand towel and one towel for drying off are the basics. If you intend to visit several facilities in a row, having an extra set is reassuring.

Overnight accommodations often provide towels in the room, while day-use facilities may charge for rentals. If you don’t have a particular preference for towel quality, buying or renting locally is fine, but bringing your own is cheaper.

Handy items for the sauna

If you plan to use the sauna, the following can be useful:

• Sauna hat
• Personal sauna mat
• Easy-to-drink water bottle
• Lightweight jacket or cover to wear during outdoor cooling breaks

These items are optional. Beginners only need the basics—towels and hydration—and can add items later if they find them necessary.

Moisturizers and toiletries

If you tend to get dry after hot springs or saunas, bring lotion, emulsion, lip balm, and similar items. This is especially helpful in winter or after bathing in acidic or sulfurous waters that may feel irritating.

Contact lens wearers may also find eye drops or a case useful. Tailor small personal items to your usual routine.

Additional items for overnight stays

If you’re staying at a ryokan or hotel, prepare items beyond bathing supplies:

• Regular medications
• Chargers
• Clothes for the next day
• Extension cord if needed
• A book or earphones for relaxation time

Avoid bringing electronic devices into bathrooms or changing rooms. Doing so can lead to privacy issues and is generally discouraged.

Seasonal differences

In summer, pack a few extra changes of clothes. You’ll sweat more and may want to change after traveling between sites. Sun protection helps if you’ll be outdoors at hot spring towns.

In winter, bring moisturizers, a warm coat, gloves, and disposable hand warmers if needed. If you’re traveling for a snowy outdoor bath experience, prepare to avoid getting cold after bathing.

Coins and payment methods

Some bathing facilities require a 100-yen coin for lockers. While cashless payment is increasingly common, many places still work more smoothly if you carry some cash.

A small amount of change helps when buying drinks or using coin lockers. Don’t assume a fully cashless trip is safe.

Don’t overpack

Too much luggage makes travel inconvenient, especially for day trips. Keep to the essentials for a more comfortable experience.

Reduce expensive jewelry and items that can be damaged by getting wet. Some items may discolor from hot spring minerals, so it’s safer not to bring unnecessary valuables into the bathing area.

If you forget something

Towels and basic toiletries can often be bought or obtained locally at ryokans, day-use facilities, or nearby convenience stores, so forgetting something won’t usually ruin the trip.

However, skincare that suits your skin or specific regular medications are hard to replace, so prioritize checking those items before you leave.

Summary

Organize your hot spring and sauna packing around towels, a change of clothes, hydration, and a waterproof bag. Sauna hats and personal sauna mats can be added as you see the need.

The most important thing is to check what the facility provides and bring only items that suit your skin and health. On a hot spring trip, it’s more important not to forget necessary items than to over-prepare.