Ijen Crater Description
IJEN CRATER DESCRIPTION
Ijen Crater Description: Acidic Crater Lake on Top of a Volcano
Climbing Mount Ijen will offer you an unusual but beautiful view of acidic crater sited on top of the volcano. Find the Ijen Crater description in this article to know it more.
About Ijen Crater Lake
Ijen Crater Lake is very popular among tourists, both domestic and foreign. The crater is located on the peak of Mount Ijen in East Java, Indonesia. The mountain is an active volcano that makes the appearance of the crater becomes more unique. The crater comes with a beautiful color of turquoise that makes everyone who looks at it soon fall in love. Kawah Ijen is acidic crater lake which lies along 1 km. The acid makes the crater is surrounded by sulfuric smoke.
For local people, Kawah Ijen also benefits them in a different way. They use it as sulfur rocks mining site to provide them with additional income. Every day, they carry down baskets of sulfur chunks by hand. The chunks are usually taken from the bottom part of the crater. When climbing the mountain, you will find many local people with their sulfur rock loads in their hand along the track.
Ijen Crater description and appearance is amazing. It is an active crater with diameter reaches 2,369 feet. The size of the lake makes it is acknowledged to be the largest acidic volcanic crater lake on the Earth now. Though the sulfur smoke can be very dangerous, it doesn’t make the number of tourists who visit the lake lower. This is because the natural view offered by the crater lake is exceptionally wonderful.
What You Can Find in Mount Ijen
Besides its amazing acidic crater lake, Mount Ijen is also popular with other attractions. Most people choose to climb the mountain at night due to the sunrise they can enjoy the next morning. You will never forget how beautiful it is when the sun peeps through the high mountain surrounded by identical red and orange color of the sky that usually comes with it. Standing high at the top of the mountain with fresh air breezes on your face is truly amazing.
In the mountain, you can also enjoy one of the rarest natural phenomena in the world. There will be a “natural blue fire show”, you can only enjoy the beauty of the Blue Flame Crater late in the morning just before the sun shows up. Thus, the best time recommended for you to start your journey to the crater is by midnight.
You can depart at about 1 AM from affordable hotels you can easily find at the slope of the mountain. You can either walk to the mountain or reach it by riding hardtop. If you choose to do the later, there will be local people who drive and guides you along the journey. But, you will not be taken to the mount’s peak with the hardtop. You will be dropped just below the mountain and then climb through a ladder to reach the crater.
Acidic Crater Lake on Top of a Volcano
Mount Ijen in East Java, Indonesia, is famous for its stunning Ijen Crater Lake, the largest acidic crater lake in the world. The lake’s water is a bright turquoise color due to the presence of sulfur in the water. This beautiful lake is located on an active volcano, which gives it its extreme acidity.
The crater is a geological wonder, and it attracts the attention of scientific researchers and tourists. Visitors are particularly intrigued by the mesmerizing blue flame phenomenon, which occurs when sulfur gas ignites on contact with oxygen. This captivating destination offers an extraordinary experience for adventurers and nature enthusiasts. You’ll witness the combined splendor of nature and the thrill of exploring one of the most stunning volcanic landscapes in the world.

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About Ijen Crater Lake
Ijen Crater Lake at the summit of Mount Ijen, East Java, Indonesia, is a stunning natural wonder that attracts domestic and international tourists. This active volcano has a stunning turquoise crater lake, which is recognized as the largest acidic volcanic crater lake in the world. The lake is about 1 kilometre long.
The color of the lake water is bright due to dissolved sulfur and aluminium, captivating everyone who sees it. However, the acidity in the lake is high with a pH level of about 0.5. The risks must also be significant as the lake is surrounded by sulfur fumes that can be harmful to health.
Despite these dangers, the appeal of Ijen Crater remains strong. You can witness its incredible scenery and unique phenomena such as “blue fire”, where sulphurous gases ignite to create an otherworldly glow at night. The crater measures 2,369 feet in diameter, making it a striking feature against the backdrop of the East Java landscape.

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Furthermore, local people also benefit from the crater. They are involved in sulfur mining, carrying large baskets of sulfur chunks from the depths of the crater to make a living.
Climbers often encounter these miners along the trail to the summit. The mountaineering experience itself is rewarding yet challenging. It usually takes two to three hours to reach the summit.
You should prepare well for your hike. Then, don’t forget to respect local customs and environmental guidelines. Along with increasing tourism in the area, Ijen Crater continues to be a must-visit destination for nature lovers and adventurers. It offers unforgettable views of one of the most stunning volcanic landscapes in the world.
What You Can Find in Mount Ijen
Mount Ijen is a volcano on the border of Banyuwangi and Bondowoso regencies, East Java, Indonesia. It reaches a height of 2,386 meters. Then, this majestic mountain offers a variety of unique experiences for its visitors.
Climbing Mount Ijen
Climbing Mount Ijen is one of the must-do activities in East Java. You will get the experience of climbing in the dark to witness the magnitude of the crater with the rays of the rising sun. The one-way hike generally takes about 1 hour and 30 minutes. Therefore, hikers can reach the crater around 3:30 am if they start the hike at 2:00 am when the gate opens. This early arrival gives enough time to see the blue flames and get a good spot to watch the sunrise. However, you should be careful when walking around the crater due to the uneven terrain and lack of safety rails.
Witnessing Blue Fire
One of the most famous features of Mount Ijen is the “blue fire”, which is created by the burning of sulfur gas. To see this phenomenon, we recommend reaching the summit of Ijen around 3:00am. The journey down to the lake from the crater rim takes about 25 minutes. Furthermore, navigating the path is also steep and uneven in the dark, and is often crowded with other visitors.
Then, conditions can be very challenging. There is the potential for wind changes that carry clouds of sulphuros gas, which can affect the eyes and lungs even if you are wearing a mask. Despite these challenges, many visitors find the experience of watching the blue flames worth the effort. Those less interested in the blue flames can start their hike later, around 3:00 am. The scale of the fire may vary depending on volcanic activity and cloud coverage. Certainly, the dry season will offer the clearest views.
Admiring Sunrise on Mount Ijen
Beyond the blue flames, sunrise on Mount Ijen is a stunning sight. Seeing the sunrise from anywhere around the crater is a delight. However, you can head to the “sunrise spots” marked on Google Maps for a more sheltered experience.
Witnessing the landscape illuminated by the morning light after hours of darkness is an unforgettable moment. The turquoise color of the Ijen crater lake surrounded by the silhouettes of dead trees creates a surreal and unforgettable scene.
Capturing the Struggle of the Sulphur Miners
Another important aspect of Mount Ijen is the sulfur mining operation that has been active since 1968. Miners extract the sulfur by breaking it into blocks and transporting it in 90 kg wicker baskets up and down the volcano. The work is physically demanding. Furthermore, miners often work in flip-flops or rain boots and are paid very little for their efforts. Witnessing their hard work is both impressive and humbling. It is important to respect their workspace by not blocking their path and letting them pass unhindered.

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Important Information for Ijen Visitors: Trail Conditions and Safety
For those planning a visit, recent reports indicate that some trails may be slippery due to rainfall. So, you’d better be careful. The climb to Mount Ijen is challenging and requires a good level of fitness, especially for night hikers. The initial 600 meters from the entrance is relatively flat before the trail starts to climb steeply for about 3 km to the crater rim. The trek usually takes 1.5 to 2.5 hours. The descent from the crater rim to the sulphur mine is steep and rocky and may take about 45 minutes.
Also, crater conditions can be unstable, so it is important to follow the guide’s instructions. You will only get permission to descend into the crater if the sulphur fumes are deemed safe and you are physically fit. It is also important to remember that miners sometimes put out blue fires to maintain sulfur mining productivity. So, visibility cannot be guaranteed.

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Don’t Delay Your Amazing Ijen Experience!
Visiting the Ijen Crater is not only an adventure, but also a chance to witness one of nature’s most incredible creations. The combination of stunning scenery, unique geological features and cultural experiences makes it a must-visit destination for anyone traveling to Indonesia. Whether you’re intrigued by the allure of blue flames or simply want to bask in the beauty of this acidic lake, Ijen offers an unbelievable experience that will leave you with unforgettable memories. Experience adventure, honor the power of nature, and take part in one of the world’s most awe-inspiring spectacles. Let’s plan your visit to Ijen Crater today!
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