Mount Rinjani
Rinjani is Indonesia's second-highest volcano and one of the country's classic multi-day treks, climbing to the crater rim overlooking a turquoise crater lake (Segara Anak) with an active new cone still smoking inside it, before continuing to the true summit for sunrise. It's a demanding trek — most itineraries run 2-4 days with steep scrambling sections, cold high-altitude camping, and a genuinely tough push to the 3,726m summit starting around midnight.
The trek requires a registered guide and porters by regulation, and route options vary from a shorter rim-and-crater-lake trip to the full summit push, which is significantly harder and not guaranteed to be doable depending on weather and fitness. Hot springs near the crater lake are a common reward stop for those doing the multi-day route.
Mount Rinjani FAQs
You can do a shorter 2-day trek to the crater rim and lake without attempting the summit, which is considerably less demanding than the full summit push.
Quite fit — the final summit push is a steep, loose-scree scramble in the dark and cold, and even experienced hikers find it tough. It's not a casual add-on.
No, the trek is typically closed during the wet season (roughly December to March) for safety, and can also close temporarily after volcanic activity or trail damage.
Yes, licensed guides and porters are mandatory by park regulation — independent trekking isn't permitted.
2 days for crater rim only, 3-4 days for the full summit and rim loop, which is the more common and rewarding option if time allows.
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