Mount Rinjani Trekking: The Complete Guide (2026)

Mount Rinjani is the second-highest volcano in Indonesia, rising to 3,726 meters above the island of Lombok. For most trekkers, it is the hardest and most rewarding thing they do in Southeast Asia. This guide covers everything you need to plan it properly, from choosing a route to what you carry on summit night.

What makes Rinjani special

Rinjani is not just a summit. Inside its enormous caldera sits Segara Anak Lake, a crescent of turquoise water with natural hot springs at its edge and a small active cone, Gunung Baru Jari, still smoking in the middle. You climb above the clouds, sleep on a crater rim, and on a clear morning you see three islands at once: Lombok below you, Bali’s Mount Agung to the west, and Sumbawa’s Tambora to the east.

The main trekking routes

Almost every Rinjani trek starts from one of two villages: Sembalun in the east or Senaru in the north. Sembalun is the classic summit approach across open savanna. Senaru climbs through rainforest. Many of the best programs traverse the mountain, starting at one and finishing at the other. We break the choice down in detail in Sembalun vs Senaru, and the wildest way down in the Torean route.

How many days you need

Rinjani programs run from a single hard push to a full five-day traverse:

2D1N — summit only, very demanding. See the 2D1N Summit Attack.
3D2N — summit, lake, and hot springs compressed. See 3D2N Summit, Lake & Hot Spring.
4D3N — the complete experience at a sane pace. See Summit & Torean or Sembalun to Senaru.
5D4N — two summits and the Torean descent. See 5D4N Dual Summit.

Not sure which fits you? Read how many days you really need.

Difficulty and fitness

Rinjani is rated moderate to very hard depending on the program. You do not need technical mountaineering skills, but you do need to walk 6 to 10 hours a day and climb loose volcanic scree before dawn. We cover this honestly in how hard Rinjani really is, and whether a first-timer can do it in Rinjani for beginners.

Cost, permits, and the best time to go

Package prices depend on group size and service class. We lay out real numbers in the Rinjani cost guide. Every trek also needs a national park permit through the eRinjani registration system, which a good operator arranges for you. For weather and crowds, see the best time to climb, and for the current state of the trails, Rinjani today.

Safety and your body

Rinjani is safe with the right team and the right preparation, and genuinely risky without them. Read our honest safety guide and how to handle altitude sickness. The single biggest safety factor is who you trek with, which is why we wrote how to choose a Rinjani operator.

What to pack

Most camping gear is provided. What you bring is clothing, footwear, and a few small essentials people always forget. The full list is in the Rinjani packing list.

What summit day actually feels like

You wake at 1:30 AM, climb three hours of cold scree in the dark, and reach the top as the sun breaks over the horizon. It is the hardest and best part of the whole trek. We walk you through it hour by hour in Rinjani summit day.