In 2022, an older runner I met at a Manali cafe told me that mountain running is not about lungs. It is about humility. Years later, after my first attempt at a Himalayan trail race ended at a checkpoint I had no business reaching, I understood what he meant. The Great Himalayan Running Festival in September is the kind of race that asks you, kilometre by kilometre, whether you have any business being there. The honest answer is built in training.
This guide is not a generic mountain plan. It is a sketch, written for the runner sitting at sea level in Mumbai or Chennai or Bengaluru, staring at a registration page in Himachal Pradesh, wondering how to get from here to there. I will tell you what I learned. Some of it I learned the hard way.
The mountain you are training for
The Great Himalayan Running Festival is a multi-day series in and around Manali. The terrain is alpine. The air is thinner. The descents are long enough to wreck quadriceps trained only on flat city roads. The aid stations are warm and welcome, but they cannot fix a body unready for elevation.
The festival is a series, not a single race. That distinction matters. Multi-day racing demands that you finish each stage with enough body left for the next one. The goal is not the fastest split. The goal is a body that can do it tomorrow.
What altitude does to a flatland runner
If you live below 1,000 metres, your body has built itself for richer air. The Manali region sits considerably higher. The first 48 hours at altitude, you will feel breathless on stairs you used to take two at a time. That is the body asking for time. It is not the race. It is the prologue.
Why September
September is the soft window between the heavier rains and the early winter. The trails are still alive with end-of-monsoon green. Mornings are sharp. Afternoons can be warm at lower elevations. Expect weather to change in under thirty minutes. Pack for it.
The 20 to 24 week training block
This is a long block. It earns the right to be long because of what the race asks. Break it into four phases.
Phase 1: Base aerobic (weeks 1 to 8)
Five easy runs a week. One long run on weekends, building from 18 km to 28 km. No intensity. The job here is mileage at conversation pace. Begin to add gentle hills if your city has any. If it does not, find a flyover, a hill in a park, or a treadmill at 6 percent. I trained for one of these races on the flyover near my house. It was not glamorous. It worked.
Phase 2: Strength and elevation (weeks 9 to 14)
Now you add structure. Two key sessions a week. One uphill effort session: long hill repeats of 3 to 6 minutes at hard but sustainable effort. One long run with significant elevation. If you can travel to a hill station for a long weekend, do it. A single weekend in Munnar or Lonavala or Mahabaleshwar will shift your sense of what climbing feels like.
Strength training matters more than runners admit. Two days a week. Step-ups, single-leg squats, calf raises, deadlifts, planks. The quads need to absorb the descents. The hamstrings and glutes need to power the climbs.
Phase 3: Specificity (weeks 15 to 20)
Long runs grow to 35 km plus. Back-to-back long efforts on weekends, mimicking multi-day racing. Saturday 30 km. Sunday 20 km. The body learns to run on tired legs. If you can spend a week at altitude in this phase, do it. Even five days at 2,000 metres or higher gives a measurable benefit when racing higher.
Phase 4: Taper (final 3 to 4 weeks)
Volume drops by 30 percent in week one of taper, 50 percent in race week. Intensity stays brief. Sleep climbs. Race-day visualisation begins. The taper is when the work consolidates. Trust it.
Heat, rain and the monsoon hangover
You will train through the Indian summer. There is no way around this. Read the heat and monsoon guide and adapt your sessions: hills before 6 a.m., long runs on Sundays at the earliest light, hydration tested at every step.
Trail-specific kit
A trail shoe with grip you can trust on wet rock. A vest that can carry 1.5 litres of water and your gels. A windproof jacket. A small first aid kit. A whistle. A buff. Trekking poles, if the race allows them. Read the official kit list weeks in advance, not the night before.
Fuelling at altitude
Appetite drops at altitude. Eat anyway. Aim for 50 to 70 grams of carbohydrate per hour on the trail, even when you do not feel hungry. Salty real food works better at altitude for some runners. Test in training, not on day one.
The week before the race
Arrive in the mountains at least three days before your first stage if you can. Five is better. The first 24 hours at altitude, walk gently. Drink more water than you think you need. Sleep early. Avoid alcohol. Eat carbohydrate-rich meals.
Race kit: laid out 48 hours before. Watch charged. Hydration vest packed. Gels counted. Mind, ideally, also calm. Mine never is. I read a book in the evening to slow the heart. Others walk. Find your version.
Race-day execution across multiple stages
This is the heart of the festival. Each stage is its own animal.
Stage strategy
Start every stage 30 seconds per kilometre slower than your feel says you can. The first kilometre at altitude lies to you. By the time you reach the first climb, you will be glad you did not race the first kilometre. Walk the steepest pitches without ego. Run the runnable bits. Descend within control. Eat at every aid station.
Recovery between stages
The recovery window between stages is the race within the race. Cold water on the legs. Compression if you like them. Real food within 30 minutes of finishing. A second meal at dinner. Sleep eight hours minimum. Repeat tomorrow.
When the head says no
It will. Mid-stage, somewhere on a climb, the head will whisper that this was a bad idea. Listen, then keep walking. Climbs end. So do bad mental patches. The race rewards patience the way the Himalayas have rewarded patience in every story you have ever heard about them.
Bring it home
This is a race that changes how you think about running. The Manali air, the long valleys, the warmth of the welcome at the finish line. None of it survives in a training log entry. It lives somewhere else.
To build the body that can do this, use a structured ultramarathon plan or generate a personal plan in the STRIDD plan generator. Use the calculators to estimate trail times honestly. Browse Running Lab for first-hand essays from runners who have raced in the Himalayas. Confirm dates and logistics on the event page.
Then start. The mountains are not going anywhere. Neither, with the right training, are you.