2-Day Kawah Ijen Midnight Blue Fire & Turquoise Acid Lake
Midnight crater descent, electric cobalt-blue flames, and the world’s largest acid lake
An unforgettable midnight expedition into Mount Ijen to witness ignited sulfuric gases burning with ethereal electric-blue flames. Watch the sunrise illuminate the world’s largest highly acidic crater lake (pH 0.5) and observe resilient sulfur miners at work.
Day-by-Day Itinerary & Daily Flow
Banyuwangi Coast & Midnight Crater Ascent
Cross from West Bali (Gilimanuk) on the 45-minute ferry or fly directly from DPS to Banyuwangi (BWX). Settle into your boutique coastal or plantation hotel.
Test your dual-cartridge respirator gas mask with your licensed mountain guide and stroll through fragrant coffee groves.
00:30 departure by 4WD to Paltuding. Begin the 3.5 km hike up the mountain under a canopy of stars.
Kawah Ijen Midnight Blue Fire & Acid Crater Trek
Turquoise Acid Crater Dawn & Jagir Waterfall
Watch the morning light illuminate the milky turquoise acid lake (pH 0.5) from the crater rim. Greet sulfur miners transporting heavy mineral blocks up the caldera path.
Cool off with a refreshing dip at Air Terjun Jagir and sample freshly roasted Robusta coffee at the Dutch-era Kalibendo plantation.
Relax at your coastal resort overlooking the Bali Strait, or take the 45-minute ferry back to Gilimanuk, Bali.
Banyuwangi Waterfall & Coffee Plantation Tour
Java & Royal Cities
This expedition is part of the Java & Royal Cities travel portal. Explore all destinations and regional flight connections.
Open Java & Royal Cities Portal →Curated Stays in this Region
Hotel Tentrem Semarang
InterContinental Jakarta Pondok Indah By IHG
Snooze Hostel Malang
Padma Hotel Semarang
Field Gear & Packing Essentials
Core expedition essentials verified for tropical island maritime transit, volcanic trails, and remote crossings.
- ✓ Footwear: Broken-in trail runners or reef booties with vulcanized high-traction grip.
- ✓ Waterproof Pack: 20L submersible dry bag for open-sea tender and zodiac boat transfers.
- ✓ Health & Sun: Reef-safe mineral sunscreen, tropical DEET insect repellent, and electrolytes.
Quick Itinerary Links
Other Suggested Expeditions
Curated signature journeys across Indonesia’s outer island realms with boutique stays, transit advice, and seamless day-by-day pacing.
3-Day Komodo & Labuan Bajo Island Hopping Safari
Prehistoric dragons, pink sand coves, and world-class manta ray snorkeling
Experience the ultimate seafaring expedition across the UNESCO-protected Komodo National Park. Hike to the iconic tri-colored crescent bays of Padar Island, encounter Komodo dragons in their natural savanna habitat with certified rangers, and drift snorkel over pristine manta cleaning stations.
5-Day Sumba Living Megaliths & Wild Coastline Safari
Animist Marapu traditions, 25-meter peaked clan roofs, and untouched surf lagoons
Step into Indonesia’s most culturally preserved island. Explore soaring thatched clan houses, ancient stone megalithic burial tombs at Ratenggaro, the turquoise tidal lagoon of Weekuri, and the low-tide silhouettes of dancing mangroves at Walakiri Beach.
4-Day Mount Rinjani Summit & Segara Anak Lake Trek
Indonesia’s second-highest active volcano, azure caldera lake, and volcanic hot springs
Ascend through moss-draped tropical rainforest from Senaru to the crater rim of Mount Rinjani (3,726m). Camp high above the clouds overlooking the turquoise caldera lake of Segara Anak and the active cone of Mount Barujari before soaking in mineral hot springs.