伊真火山口
拥有碧绿酸性湖和罕见“蓝色火焰”（硫磺气体燃烧）的火山口，需从帕尔图丁凌晨徒步登顶。
💡 当地贴士Domestic Rp5,000 weekdays / Rp7,500 holidays; foreigners Rp100,000 / Rp150,000 (QRIS cashless only). The hike takes 2–2.5 hours; blue fire is visible about 01:00–04:00. A gas mask is essential at the crater. Book tickets online on busy weekends.
- 📍地址Ijen Crater, Licin, Banyuwangi / Bondowoso border (Paltuding trailhead)
- 🕐营业时间Hiking gate opens around 02:00; closed the first Friday of each month
- 🎟️门票IDR 5,000
- 🌤️最佳时间旱季（5–9月）