12-Week Fitness Plan for a Nepal Trek

How fit do you need to be before you start training?

Two tests, and you need to pass both: 15 km with an 8 kg pack in under 4 hours, and 1,000 stairs without stopping. Pass both and you can start this plan at week 5. Fail either one and you start at week 1. No gym equipment needed for either, just honesty with yourself.

What does a 12-week trek training plan look like?

Twelve weeks in three four-week phases: base, build and peak. Each phase has one goal and one readiness test, and you do not move up a phase until you have passed the test for the one you are in. The load climbs from comfortable daily walks to back-to-back loaded days that feel like the middle of a real trek.

If you fail a phase test, repeat that phase rather than moving on. Twelve weeks is the plan for someone starting from a normal, non-athletic base. Nobody I guide has ever regretted arriving over-prepared.

How to train for trekking in Nepal

Train for 5 to 14 consecutive days, not for one good day. That is the gap between generic hill fitness and Nepal fitness, and it is where most of the trekkers I take out get caught. Three things are specific to here.

1. Consecutive days, not one long day

A Poon Hill trek is 5 days. Everest Base Camp and the Manaslu Circuit are 14. You walk, sleep badly at altitude, eat dal bhat, and do it again. Someone who trains one long Sunday walk arrives able to do day one brilliantly and day four badly, which is exactly when the trail gets serious. That is the whole point of the back-to-back weekends in weeks 9 to 12: the second day is the training, the first day is just the warm-up.

2. Descent is the part that actually hurts

Almost every sore knee, wrecked quad and blackened toenail I deal with happens on the way down. The Annapurna trails are stone staircases, thousands of steps at a time, and coming down them your legs are absorbing load rather than producing it. Untrained calves are destroyed by that in a day. Train the descent as deliberately as the climb: walk down hills slowly under a loaded pack, and do the calf raises (3 × 25) in the strength list below from week 1 rather than adding them at the end.

3. Altitude is a separate problem from fitness

No amount of training protects you from altitude sickness. Acute mountain sickness is not correlated with fitness: it is governed by how fast you gain sleeping altitude, which is a decision about the itinerary, not about your legs. Training buys you something different but real, which is spare capacity, so that a hard day does not leave you too exhausted to notice a headache getting worse. Read the altitude sickness guide before you fix your itinerary, because the ascent rate matters more than any of this.

What strength exercises matter most for trekking?

Six movements cover it: squats, reverse lunges, weighted step-ups, calf raises, plank and dead bug. Legs and core are what carry you to 5,364 m and back down again. Knee stability and lower-back endurance decide whether you finish strong or limp into camp.

What fitness level does each Nepal trek require?

Weeks 1 to 8 are enough for the two 5-day routes, Poon Hill and Mardi Himal. The 10 and 14-day routes, Annapurna Base Camp, Manaslu Circuit and Everest Base Camp, need the full 12 weeks. Manaslu also wants prior altitude experience, and for Everest I want to see the back-to-back test passed before we set the itinerary.

Mardi Himal is the one people underestimate. It is only 5 days, but it tops out higher than Annapurna Base Camp, so the fitness is moderate while the acclimatization is not. Prepare your body for EBC by completing the full peak phase. Manaslu demands the same.