Mount Rinjani - Lombok’s giant volcano, with rim camps, the Segara Anak crater lake and a punishing scree summit

The line through Lombok, Indonesia - waypoints, elevation and the day-by-day shape of the walk.
NE start
Rim camp
Loose-scree summit night
Lake + hot springs
NW finish
Apr-Dec (dry season)
Cold nights on the rim, the loose scree summit night, heat lower down
Dry-season only (~Apr-Dec); the park CLOSES early in the year (rains) and can close for activity - confirm current dates.
Savanna, crater-rim camps, a brutal loose-scree summit push, and a crater lake with hot springs
Non-technical walking/hiking; confirm any exposed or scrambly sections locally
Marked/waymarked route; navigation generally straightforward - carry a map and confirm locally
Suitable for reasonably fit hikers; not wheelchair accessible - confirm specifics
A popular, well-known route - busier in peak season
Rim-only (Sembalun) for the crater view without the summit; the hot springs at the lake
Sembalun to Senaru, Lombok
Point-to-point may need transport between ends - confirm
Camping on the crater rims (porter-supported); no huts
Layered outdoor kit, sturdy footwear, sun/rain protection, ample water; patchy mobile coverage - carry a map/PLB where remote
Services in Sembalun / Senaru; limited or none on the trail
Mandatory guide + porters
A national-park e-ticket (booked ahead, quota) and a licensed guide/porter are required. Confirm.
Permits and operators change - confirm before booking.
The exhausting loose-scree summit, altitude, cold, the long descent
Retrace the route to exit; dial local emergency services; carry a means of calling for help where remote
This profile is desk research, compiled from public sources - not a first-hand trail report. Coordinates are approximate.