Experience Mount Ijen’s surreal blue flames on an overnight trek from Ubud. This long travel day combines a ferry crossing and a steep pre-dawn hike to a highly acidic crater lake and active sulfur vents.
More ways to explore the area's outdoor wonders
The van pulls away from Ubud under a violet sky and the highway dissolves into island darkness — a slow, steady push toward Java by ferry, then a final climb to the Ijen rim.
Difficulty
moderate
Duration
12–16 hours
Fitness Level
Suitable for those with regular aerobic activity; able to hike for 1–2 hours uphill on uneven terrain and manage steep steps.
Wildlife
History
Ijen is a nested caldera in East Java with active fumaroles; organized sulfur extraction has been part of the local economy for over a century.
Conservation
The acidic lake and sulfur mining create environmental stress; stick to trails, avoid litter, and support operators who minimize disturbance.
Reserve your spot on the Mount Ijen Crater Tour From Ubud Bali today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early, expect a long day
Departures from Ubud involve an overnight drive and ferry; be prepared for 10–16 hours door-to-door and limited rest windows.
Bring or use a gas mask
Sulfur fumes can be intense near fumaroles and the crater floor — use a provided mask or bring an N95/respirator rated for gases.
Wear sturdy, grippy footwear
Trails shift from packed dirt to loose volcanic scree; ankle support and good traction reduce slip risk on steeper sections.
Layer for pre-dawn cold and volcanic heat
Temperatures drop sharply before sunrise; pack a warm jacket that stashes easily once the sun rises.
Headlamp with fresh batteries
Hands-free light is required for the pre-dawn ascent and descent.
High-filtration mask (or use provided mask)
Protects from sulfur fumes near fumaroles and the crater floor.
Sturdy hiking shoes
Good traction and ankle support help on loose volcanic scree and wet sections.
Insulating layer and light rain shell
Pre-dawn rim temperatures can be cold; a compact jacket and rain gear handle wind and showers.
winter