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International entry to Kawah Ijen costs 100,000 IDR on weekdays and 150,000 IDR on weekends. The trail opens at 2:00 AM for the midnight hike and closes at noon, shutting down entirely on the first Friday of every month.
Kawah Ijen opens at 02:00 AM, giving hikers time to reach the crater and view the blue fire before dawn. All trails close by 12:00 PM. Rangers shut the entire park on the first Friday of every month for a mandatory conservation and nature cleaning day.
| Day | Hours | Note |
|---|---|---|
| Monday–Thursday | 02:00–12:00 | |
| Friday | 02:00–12:00 | Closed the first Friday of every month for conservation |
| Saturday–Sunday | 02:00–12:00 |
Heavy rains between December and March frequently force park closures due to flooded, slippery trails and dense fog. Rangers also shut the paths immediately without advance notice if seismic tremors spike or toxic sulfur clouds shift toward the hiking route. Check the official Magma Indonesia website for real-time volcanic alerts before departing.
International visitors pay 100,000 IDR for weekday entry and 150,000 IDR on weekends. You must secure tickets online through the official conservation portal before reaching the base camp. Bring physical cash to pay for the mandatory health certificate and equipment rentals at the trailhead.
No regular free entry days exist, and the complex closes completely on the first Friday of every month for nature cleaning.
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View All ToursApril through October delivers clear skies and dry trails for viewing the blue fire. Rain from December to March brings heavy fog, slick paths, and sudden park closures. The 2,000 daily allowed visitors heavily concentrate around the 02:00 AM opening time, creating dense crowds on the 3-kilometer ascent before sunrise thins the numbers.
Expect to spend 4 to 6 hours at Kawah Ijen. The steep 3-kilometer hike to the crater rim requires 1.5 to 2 hours of steady walking. Total duration depends on whether you descend into the toxic crater to view the blue fire or remain at the rim for sunrise over the acidic lake.
Book tickets at tiket.bbksdajatim.org and secure a medical health certificate before arriving. Rangers will deny entry without this mandatory document, introduced in January 2024. Plan your visit for a weekday to pay 100,000 IDR instead of the 150,000 IDR weekend rate.
Kawah Ijen shuts down entirely on the first Friday of every month for conservation work. Target the April to October dry season for clear skies and safer trails. Heavy rain between December and March turns the 25% grade dirt paths into slick mud, prompting sudden park closures.
Wear old clothing and leave your contact lenses at home. Sulfuric acid in the air causes severe eye irritation and permanently ruins fabrics with a smell that survives multiple washes. Rent a professional gas mask at the Paltuding base camp for 45,000 IDR, as surgical masks offer zero protection against the toxic plumes.
Begin hiking at 2:00 AM to see the 600 °C blue fire. The chemical reaction vanishes the moment the sun rises. Temperatures drop below 10°C at the crater rim, so pack warm layers and bring a headlamp to keep your hands free on the rocky 3-kilometer ascent.
Toxic sulfur clouds shift rapidly with the wind inside the crater. Drop low to the ground and breathe through your respirator if caught in a dense plume. Use the restrooms at the Paltuding base camp before starting, as the 4 to 6-hour round trip lacks any facilities along the trail.
International visitors pay 100,000 IDR on weekdays and 150,000 IDR on weekends. Purchase tickets online through tiket.bbksdajatim.org before arriving at the mountain. Ensure you have your booking confirmation ready at the Paltuding base camp.
Gates open daily from 02:00 AM to 12:00 PM. Rangers close the entire site every first Friday of the month for a nature cleaning day. Sudden closures happen if volcanic tremors or gas releases spike, so check the Magma Indonesia website the morning of your hike.
Begin your hike right at 02:00 AM to reach the crater before dawn. Ignited sulfuric gas burns at 600 °C and vanishes from sight once the sun rises. The trail covers 3 kilometers of steep, rocky dirt and takes 1.5 to 2 hours one way.
Yes, a medical certificate confirming you have no history of heart or respiratory issues is mandatory as of January 2024. Toxic sulfur fumes fill the air, making the environment highly dangerous for anyone with asthma. Officials check these documents at the entrance gate.
You must wear a professional gas mask to descend into the crater. Standard surgical masks provide zero protection against the acidic sulfur clouds. Rent a proper mask at the Paltuding base camp for approximately 45,000 IDR.
Guides are not legally required to hike the main trail. However, navigating the 25% incline and the slippery descent into the crater in the dark carries severe risks. If you hire assistance, bypass the fake guides at the entrance and book through a licensed agency.
Facilities do not exist past the Paltuding base camp. Use the restrooms at the trailhead before you start climbing. Pack at least 1.5 liters of water and high-energy snacks for the 4 to 6-hour round trip.
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