Ranu Kumbolo
High mountain lake about 2,400 meters along the Semeru trek, famous for lakeside camping and sunrises; one of Indonesia's best-known campsites.
Ranu Kumbolo lies in a valley about 10 km south of Ranu Pani at roughly 2,400 meters. Its water is calm and clear, and at sunrise the sun rises between two hills and reflects on the lake, making it a sacred place for Indonesian climbers. Camping is allowed by the lake. After crossing “Love Slope,” you reach the Oro-Oro Ombo grassland, covered in purple vervain. The one-way hike from Ranu Pani takes about 4–5 hours. Book in advance on the national park website and carry a health certificate, as daily permits are limited. The trail may close due to weather, volcanic activity or ecological recovery periods.
Opening hours
Advance booking required (per national park announcements)
Nearby sights
- Ranu Pani
- Mount Semeru
- Coban Pelangi
- Teletubbies Hill (Bromo Savanna)
- Whispering Sands (Pasir Berbisik)
- Mount Bromo Crater & Sea of Sand
- B29 Peak
- Mount Batok