How many weeks of stair climbing or hill training should you do before Mount Rinjani?

Four weeks of specific training is the workable minimum most local plans recommend before a Rinjani summit trek, and the emphasis is on stairs, hills and downhill practice rather than gym volume. More time is better if you have it, especially if your knees are sensitive or your walking background is light, but a focused month changes what your legs can do on the mountain.

The week-by-week shape looks like this. In the first week, build volume: two walks of 90 minutes to 2 hours, plus one session of stairs or hills for about 20 minutes. In the second week, add load and gradient: two hilly walks of 2 to 3 hours carrying a daypack, plus two stair sessions. The third week is the one that matters most: two long days back to back, deliberately practicing the steepest descent you can find on legs that are already tired, because consecutive-day recovery and downhill control are what Rinjani actually tests. The fourth week tapers: one easy walk early in the week, then rest and sort your equipment, so you arrive recovered rather than exhausted.

Why back-to-back days and descents specifically: the mountain’s structure demands them. The summit push takes roughly 4 hours from the rim camp at about 2,639 meters to the 3,726 meter summit, and the descents dominate the remaining days, with the measured three-day traverse covering about 33.74 kilometers and roughly 4,200 meters of cumulative ascent. Legs that have walked two days in a row, and controlled downhill while tired, are the difference between a strong trek and a survival exercise.

Honest caveats: this plan is a training example, not a park requirement or a guarantee of summit success. If you start from little walking experience, give yourself more weeks rather than compressing the same plan, and anyone with knee problems or a medical condition should get a qualified assessment before committing to a summit itinerary. Altitude symptoms, like a persistent headache or vomiting, are turnaround signs that no training plan overrides.

If four weeks is genuinely all you have, be strict about the back-to-back weekend and get real downhill work into both days, and consider a rim-only itinerary if the training goes badly. We ask guests about their preparation when they book, not to judge, but because a guide who knows your legs can pace the group so the mountain comes to meet you.