THIS IS NOT A CASUAL CLIMB,
THIS IS A THROUGH-THE-NIGHT SUMMIT PUSH.

An overnight Mount Rinjani ascent, starting in the evening and finishing the following morning
— designed for experienced hikers, mountaineers, and trail or ultra runners with the endurance
and mental resilience to move through the night.

THE EXPERIENCE.

The Rinjani Overnight Ascent covers roughly 13.5 kilometres with around 2,700 metres of elevation
gain on the ascent, followed by a 13.5 kilometre descent — completed in one continuous push through
the night. You start in the evening, headlamp on, moving steadily upward while the mountain stays dark
and quiet around you.

The early hours are about rhythm and patience. The trail climbs relentlessly, with only brief moments where
the gradient eases — still ascending, just not as steep. As the night wears on, the terrain grows tougher and
colder. Elevation increases, exposure sets in, and the mountain demands focus, strength and grit.

At the crater rim, we pause to prepare for the final push. Layers go on as temperatures drop. A hot meal
and warm drink, prepared by your porter, provide the fuel and clarity needed for what comes next. It’s a
short but important reset — physically and mentally — before moving on.

From there, the climb steepens sharply. Soft volcanic sand replaces firm trail, and each step requires intention
as tired legs work upward toward the summit. You still haven’t seen much along the way. That’s part of it.
The work happens in the dark.

Then, at the summit, everything changes.

The descent offers a different rhythm. The climbing is done, the views open up and movement becomes
more relaxed — though fatigue remains and technical sections still require focus. This is where judgement
matters. Your guiding team manages pace, terrain and decision-making as you move back down safely.

You’ll stop again at the crater rim — this time for breakfast, to shed layers as the sun warms the mountain,
and to take in the views in daylight. On clear mornings, the summit you stood on hours earlier feels both
close and impossibly far away.

It’s demanding. It’s raw.
And when everything aligns, it’s unforgettable.

Here’s how that experience has landed for others.

Karin

visiting from Germany

“Cold!” — that’s the first word that comes to mind when Karin thinks of Sembalun. For her, it’s one of the most off-the-grid places you can reach without a mission: super remote vibes, yet totally accessible, with people who are warm and welcoming.

Cedric

visiting from Germany

TO BE SUPPLIED LATER, CURRENTLY VOICE NOTES AND VIDEOS

Faustine

visiting from Germany

TO BE SUPPLIED LATER, CURRENTLY VOICE NOTES AND VIDEOS

FIELD NOTES FROM THE ASCENT.

Insights and lessons picked up from repeated overnight ascents of Rinjani.

WHAT TO EXPECT.

  • Overnight ascent (no camping)
  • Hot meals and drinks at the crater rim during both ascent and descent
  • Summit attempt timed for sunrise*
  • Private guiding and carefully managed pacing
  • Thoughtful logistics and safety management throughout
  • Adapted to conditions and your experience level

* Our objective is to reach the summit at sunrise. All preparation, pacing and timing are planned with this in mind.

However, summit timing is always subject to mountain conditions, weather and on-the-day decision-making.

Safety remains the priority at all times.

WHO THIS IS FOR.

This experience is best suited for:

  • Experienced hikers, mountaineers or trail / ultra runners
  • Those comfortable moving through the night
  • People with strong endurance and mental resilience
  • Guests short on time but seeking a serious mountain objective
  • Thoughtful logistics and safety management throughout
  • Adapted to conditions and your experience level
This experience is not suited to beginners.

PREPARATION & REQUIREMENTS.

  • Prior mountain or long-duration hiking/running experience required
  • Ability to sustain continuous movement over many hours
  • Appropriate footwear and mountain-ready gear (full list provided on enquiry)
  • Pre-ascent briefing, medical and readiness check included

BEST TIME TO TRAVEL.

The Rinjani Overnight Ascent is typically best undertaken during the dry season, when conditions are
more stable and access is consistent. That said, mountain conditions can change quickly and timing is
always assessed carefully around weather, visibility and safety.

  • Most reliable: May to September
  • Possible shoulder periods: April and October, conditions permitting
  • Seasonal closures: January to March, subject to oIicial park opening dates
We’ll always discuss timing and conditions before confirming an ascent.

WHAT MAKES THIS ASCENT DIFFERENT.

This isn’t just an overnight climb — it’s a continuous ascent that demands restraint, timing and judgement, not speed alone. Moving through the night means pacing matters, rest points matter, and decisions made under fatigue matter.
What sets this ascent apart is how decisions are made:
when to push and when to hold back, how to manage effort before the final climb, how to fuel and layer effectively at the crater rim and how to navigate both the summit push and the descent with clarity and care.
This overnight ascent has been completed many times by the founder of Elevation Lab., across different conditions and formats — in different conditions and formats — and that lived experience shapes how the

ascent is paced, guided and managed from start to finish.

From preparation and guide training to on-the-day decision-making, every element is informed by time spent learning what works, what doesn’t, and what allows the experience to remain challenging, rewarding and safe.

FROM RINJANI.

Overnight ascents. Sunrise summits. Real conditions.

WHAT’S INCLUDED.

Each ascent is priced individually based on group size, support requirements,
timing and seasonal conditions. After an initial conversation, we’ll share a
detailed proposal and recommended structure.

BEFORE YOU ARRIVE
– preparation & planning:

  • Personalised guidance, including:

– recommended kit and footwear
– packing strategy for overnight movement
– layering systems for cold exposure
– hydration and fueling strategies
– altitude awareness and pacing

  • Timing strategy based on conditions & fitness levels
  • Pre-departure briefing and readiness check

ON-THE-GROUND SUPPORT
– in Sembalun, before and during your ascent:

  • Private guiding team – guide(s) and porter(s)
  • Permits and entrance fees
  • Medical check fees
  • On-route support, pacing and safety management
  • On-route support including meals at key rest points
  • Pre-ascent briefing and logistics coordination
  • Final readiness check prior to ascent
Each ascent is priced individually based on group size, support needed, timing and conditions. After an initial conversation, we’ll share a detailed proposal.

THINKING ABOUT THE RINJANI OVERNIGHT ASCENT?

This ascent runs privately and by request.

Before confirming anything, we’ll take the time to understand your experience,
readiness and timing — and whether this ascent is the right fit for you.

START A CONVERSATION
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