Banyuwangi, East Java, Indonesia08°03.5′ S · 114°14.5′ E

Ijen Crater Trip Planner
White gas billowing from yellow sulfur deposits beside the Kawah Ijen lake

Health rules and masks

Breathe easy at the crater with the right paper and mask

Photo: Jakub Hałun / CC BY-SA 4.0

The park asks every hiker for a health certificate and a mask. The crater floor is where sulphur gas comes out of the ground, and the park advises people with heart or breathing conditions against the hike.

By Alexander B. Updated

What the park requires

Park rules for the crater hike
RuleDetail
Hiking gate02:00–12:00 WIB
TicketsOnline on AyoKeTamanNasional, collected at Loket Paltuding
ChangesNo cancellation, rescheduling or refund
Name on ticketMust match your ID card or passport
Health certificateIssued no more than 3 days before the visit
GearAnti-slip shoes, a warm jacket and a mask
Checked · source

The park also asks that you are in good physical and mental condition on the day.

Who should stay away

Who the park advises against the hike
ConditionPark advice
Heart diseaseNot recommended
AsthmaNot recommended
Respiratory infectionNot recommended
Other breathing disordersNot recommended
Checked · source

The list is the park’s. Some tours say the same: the Bali all-fees hike is listed as unsuitable for pregnant women and for people with heart problems or respiratory issues.

Masks and certificates on tours

Tour Gas mask Health certificate
Banyuwangi sunrise hike, from $11 Included, with respirator Cost included
Banyuwangi midnight trek, from $12 Included Medical certificate included
Bali all-fees hike, from $106 Mask included Health check certificate included
Bromo and Ijen 2 days, Bali drop-off, from $129 Included, with goggles Included

From GetYourGuide listings, checked 25 Oct 2026 (source).

On these tours the certificate is part of the package. The $11 hike also carries first aid and oxygen. Compare all the Banyuwangi night hikes or the Bali trips.

On your own

Without a tour, get the certificate within 3 days of your visit, bring it with the passport you booked under, and pick up the ticket at Loket Paltuding. Check the closure days first, since tickets are non-refundable.

Questions about Ijen Crater

By Alexander B.

Do I need a health certificate for Ijen?

Yes. The park's booking terms ask for a valid health certificate issued no more than 3 days before your visit.

Which Ijen tours include the health certificate?

On GetYourGuide, the Banyuwangi sunrise hike (from $11), the Banyuwangi midnight trek (from $12), the Bali all-fees hike (from $106) and the 2-day Bromo and Ijen tour with Bali drop-off (from $129) list it as included, as checked on 25 October 2026.

Is a gas mask needed at Ijen?

The park lists a mask as required gear, along with a warm jacket and anti-slip shoes. The four tours in the table on this page include one.

Can people with asthma hike Ijen?

The park does not recommend the hike for people with asthma, heart disease, respiratory infections or other breathing disorders.

What should I bring to Ijen?

The park lists anti-slip shoes, a warm jacket and a mask. When it reopened in September 2026 it also asked hikers to bring a headlamp.