Beginner Car-Camping Checklist for Japan

Packing checklist by category

[Sleep] Mat to flatten the floor / Sleeping bag or blanket / Pillow / Window shades for privacy / Insulation mat for winter

[Power and light] Power bank / Charging cables / LED lantern or flashlight / Portable power station for multiple nights

[Air] Window screens / USB fan for summer / Hot water bottle or heat packs for winter / Carbon monoxide alarm if you burn anything inside

[Food] Drinking water, since tap water on site may not be potable / Cooler box / Cassette stove or burner where fire is allowed / Bin bags

[Toilet and hygiene] Portable toilet kit / Odour-proof bags / Wet wipes / Toothbrush set

[Safety and other] Personal medication / Insect repellent / Cash for donations, check-in, and designated bin bags / Rain gear

In winter the exhaust is more dangerous than the cold

Hokkaido's crisis management guidance tells drivers to switch the engine off when a car is buried in snow, because a blocked exhaust pipe sends fumes back into the cabin and can cause carbon monoxide poisoning.

The part people miss is next: the same guidance warns that even with a window open, carbon monoxide can still build up depending on how far the window is open and which way the wind blows. A cracked window is not a safeguard.

If you must run the engine for warmth, the guidance says to keep clearing snow from around the exhaust pipe. For winter nights, plan around a sleeping bag and insulation that let you sleep with the engine off rather than around the heater.

Sleeping in a cramped seat is itself a risk

Japan's Ministry of Health, Labour and Welfare warns that sitting for long hours in a narrow car seat without moving your legs, while eating and drinking too little, slows circulation and allows clots to form, which can travel to the lungs and cause a pulmonary embolism.

Its prevention list has six items: do light exercise or stretches from time to time, drink water often and in sufficient quantity, cut back on alcohol and ideally stop smoking, wear loose clothing without a tight belt, raise and lower your heels and massage your calves, and raise your legs when you sleep.

Flattening the floor with a mat is therefore not only about comfort. Being able to stretch out instead of spending the night seated is the prevention. Skipping water to avoid a night-time toilet trip works against you here.

Water may be present but not drinkable

Shizen-no-Mori in Hirakawa, Aomori, has a cooking area, but the city tells visitors to boil the water before drinking it. A listing that shows a water point does not promise potable water.

At Yamanokyo Campground, Fukuyama City has announced that the water supply is off from 24 December 2025 to 19 March 2026 to prevent freezing, leaving the cooking shelter and toilets unusable while the site itself stays open.

Carry your own drinking water rather than counting on the site. Free campsites tend to have the fewest facilities, so scale the amount to where you are going.

You may not be able to buy bin bags on site

Yamanokyo Campground asks visitors to take all rubbish home. Okushiri Town does the same, and adds that anyone disposing of rubbish on the island must buy town-designated bags from a local shop or souvenir store and use the tourist bins opposite the ferry terminal.

Places that will take your rubbish are rare, and where disposal is possible it costs a trip to a shop and cash for the official bags. Where there is no shop, the bags simply are not available.

Pack more bin bags than you expect to need, and keep cash including coins, so you are not carrying rubbish around on the way home.

Fire rules change by site and by the day's weather

Okushiri Town states plainly that fires must not be lit directly on the ground anywhere on its sites. Open ground fires are close to unavailable in Japan, so the question is which raised stand you bring, not whether you can burn on soil.

Yamanokyo Campground bans outdoor fires whenever a weather warning is in effect, while still permitting enclosed BBQ stands and gas equipment that do not throw sparks. The same site can therefore be fire-free on the day you arrive.

Gas is what survives that rule, so treat a cassette stove as the primary cooker and a campfire as a bonus. Check the fire policy at the same time as you choose where to park for the night.