Whether you're still deciding or you've already got a trek booked, this session is designed to help you prepare with confidence for the journey ahead.
Callum's first trek in the Himalaya was in 2013. He went on to complete the legendary Great Himalayan Trail in 2016 - one of the world's most demanding long-distance routes, traversing the entire length of Nepal - before summiting Manaslu (8,163m) in 2019 and spending five weeks at Everest Base Camp. When it comes to preparing for the Himalaya, very few people know it better.
If you'd rather read through it in your own time, we've recapped the whole session below - organised so you can jump straight to what you need.
Where and When to Go
There's no single "best" time to trek in the Himalaya - it depends on your tolerance for cold, crowds, and cloud cover. Each season offers a genuinely different trip.
Choose the right trip: Consider the duration, altitude, daily distances and overall grading. Select a trek that matches your fitness, experience and adventure goals.
Autumn (September-November): The most popular trekking season with stable weather, crystal-clear mountain views and comfortable temperatures. Expect busier trails.
Spring (March-May): Ideal for colourful rhododendron forests, warm days and excellent mountain views. Afternoon cloud and occasional showers become more common later in the season.
Winter & Summer: Winter (December–February) offers fewer trekkers, clear skies and snowy landscapes, but very cold temperatures and possible high pass closures. Summer/Monsoon (June–August) is generally not recommended due to heavy rain, muddy trails, landslides and limited mountain views.
Flights, Insurance and Travel Doctor
Only book your flights once your trip is guaranteed. Our Reservations Consultants can assist you with arranging your flights.
Travel insurance is essential for any Himalayan trek - look for a policy that specifically covers trekking at altitude and emergency medical evacuation (including helicopter evacuation), not just standard travel cover. Ask your Reservations Consultant for our preferred travel insurance partners and policy details.
Visit your GP or a travel doctor several months ahead of departure. They can advise on vaccinations, medications and any health considerations specific to your destination. They'll also be able to talk you through altitude medication such as acetazolamide (Diamox) if it's appropriate for you - this is a conversation to have with your own doctor rather than a decision to make on the trail.
Fitness and Training
Training for a Himalaya trek is less about becoming an elite athlete and more about consistency over months, not weeks.
Start training early and stay consistant: Begin at least 3–6 months before departure and aim for 3–5 sessions of 30–45 minutes each week. Make sure to include some training sessions with your day pack on and your trekking boots/footwear - this will ensure you feel comfortable with your gear and prevent any blisters on the trail.
Train on hills and stairs, not just flat ground - elevation gain is the single biggest predictor of how ready you'll feel on trail, the descent is just as important as the ascent. A good benchmark: aim for training hikes with around 400–500m of elevation gain, building toward 4–6 hour sessions as your trek gets closer. This mirrors the pace of many of our Himalaya itineraries, which typically limit each day's net altitude gain at your sleeping stop to around 400–500m, even if you climb higher during the day itself.
Don't underestimate the challenge: Fitness and mental preparation work together - the better you prepare, the more enjoyable, comfortable and rewarding your trek will be.
Mental Preparation
Everyone has their own "Everest" - a goal that feels like a stretch, whatever your starting point. Setting a realistic, personal goal (rather than comparing yourself to other trekkers) is the foundation of good mental preparation.
The Himalaya can feel daunting, especially for a first-timer, but you're not doing it alone: lead guides, porters, cook teams, and our operations team are all part of getting you there and back safely. Knowing that support is in place is itself a form of mental preparation - it takes some of the weight off, so you can focus on your own experience.
Expect some genuinely challenging moments; every trek has them. Reach out to your fellow trekkers and your guide when a day feels tough - checking in with each other is part of the culture on trail, not a sign you're not coping. Most people find that pushing through a hard day is one of the more rewarding parts of the whole trip.
Gear
Start your gear research early - visit a few different outdoor stores, try on a range of brands, and work out what actually fits and functions well for you, rather than just what looks right on the rack.
Before you go, you'll receive a detailed gear list that separates items into mandatory, highly recommended, and provided. As part of your trek pack, we provide:
- A 70-litre soft duffel bag (very durable, though not fully waterproof)
- A down or fibre-fill jacket (700–800 fill)
- A sleeping bag rated to -10°C, plus a fleece liner
For your daily pack (typically 30–40 litres), you'll generally be carrying: a rain jacket, two 1-litre reusable water bottles (plus perhaps a 500ml insulated thermos for a hot drink), snacks, a small personal first aid kit (blister treatment, band-aids — separate to our own extensive group first aid kit), an extra insulation layer, and headwear items like gloves, a beanie and a buff.
Personal items worth packing into your duffel include medication, blister treatment, toilet paper, hand sanitiser, and a small lightweight towel.
Start shopping for gear six to twelve months out if you can — this gives you time for special orders or hard-to-find sizes. Our guides also run a gear check in Kathmandu before you head to the trail, and Kathmandu itself has excellent outdoor gear shops if you need to buy or hire something last-minute.
Clothing
Clothing in the Himalaya works as a layering system, and getting the layers right matters more than any single item.
- Base layer — moisture-wicking, either natural fibre (merino wool is excellent) or synthetic. Should fit snugly against the skin.
- Mid layer — an insulating fleece, synthetic jacket, or lightweight down jacket.
- Outer layer — a waterproof shell to handle wind, rain, or snow.
You'll delayer as you warm up through the morning and re-layer at breaks to hold onto that heat — mornings are the coldest part of most days, and cloud or a colder breeze can roll in by afternoon. Above roughly 4,000–5,000m, rain typically turns to snow, so rain becomes less of a factor at higher altitude even as cold becomes more of one.
It's worth keeping a separate "camp outfit" to change into at the end of each day — swapping out of sweaty trekking gear into something clean and dry is both a comfort and a hygiene win.
Keep overall gear weight in mind across your day pack, your porter duffel, and any internal flight allowances (remember: we cover excess baggage on Lukla and Jomsom flights). WEX is proud to partner with Paddy Pallin in Australia, who offer a generous discount on outdoor clothing for our trekkers.
Footwear
Footwear and your backpack are the two gear items worth investing in earliest — get these wrong and they can define your entire trip.
For hiking, we recommend at least a mid-to-full-cut hiking boot with a good tread. Leather boots (with a Gore-Tex lining) offer excellent insulation and durability; synthetic boots from reputable brands are lighter but transmit more cold through the sole. Try boots on in-store, walk up and down stairs, and watch for hot spots — you may need to size up half to a full size to allow for your feet swelling over a full day's hiking. Break your boots in over three to six months before departure; blisters caused by ill-fitting or unbroken-in boots are one of the most preventable trip-ending injuries.
Pair boots with merino wool hiking socks (medium thickness gives a good balance of insulation and comfort). For a longer trek (around 17 days), a workable rotation is roughly 4–5 pairs of socks for hiking and 2–3 dedicated pairs for camp, changing into a dry pair each evening — never put on damp socks in the morning. The same logic applies to underwear: around 5 pairs for daytime and 3–4 for evenings works well, with synthetic fabrics drying fastest if you get the chance to wash a pair.
At camp, change into a separate lightweight pair of shoes (a closed-toe runner works well) to let your feet air out.
For your backpack, look for a 30–40 litre capacity designed to carry roughly 70% of the load on your hips and 30% on your shoulders — a properly fitted pack makes a significant difference over a full trekking day. On an Everest Base Camp-style trek, a fully loaded daypack typically weighs 6–8kg. Reputable, well-regarded brands include Osprey and The North Face; try a few in-store with some weight inside before committing.
Headwear & Sun Protection
At high altitude, the atmosphere is thinner and UV exposure is significantly higher — sunburn happens faster and more easily than most people expect, especially with snow reflecting extra light back at you.
Favour high SPF/UPF fabric — wide-brim hats, buffs, and neck gaiters that can cover your chin, mouth, and nose — over relying on sunscreen alone, since sunscreen can actually freeze in cold, high-altitude conditions. We'd still recommend packing a strong sunscreen (SPF 40–50+) alongside your fabric protection, plus lip balm (cold, dry air is brutal on lips) and an after-sun or aloe vera moisturiser.
Invest in a good pair of category 2–4 sunglasses, ideally wraparound to block light coming in from the sides. Regular everyday sunglasses (category 2) aren't dark enough for high-glare alpine and snow conditions — specialist outdoor shops stock the higher categories you'll want up there.
Weather and Alpine Conditions
Himalayan weather can shift quickly, and that's simply part of the environment rather than something within anyone's control. What is within our control is experience: our guides are highly trained and adjust the day's plan — earlier starts, longer days, slower group pace — to manage snowfall, high passes, or changing conditions safely.
Snow flurries are genuinely possible even on classic routes like Everest Base Camp, the Everest High Passes, or the Manaslu Circuit, so being mentally and physically ready to hike in snow is worth factoring into your preparation. A typical daily pattern sees clearer skies and blue mornings, with cloud building through the afternoon — one of the reasons early starts are common on these treks.
Staying Healthy
Staying well on a multi-day trek at altitude comes down to a few consistent habits.
Food — we provide three cooked meals a day (breakfast, lunch, dinner) plus snacks and drink breaks, prepared to a high standard of hygiene and able to cater to most dietary requirements with advance notice. Good nutrition is what fuels your body through the cold, the altitude, and the physical demands of each day.
Sleep — altitude affects sleep quality for almost everyone. Earplugs and a small inflatable pillow are worth packing, and sleeping with your head slightly elevated above your resting heart level helps prevent facial swelling overnight.
Pace and rest — slow and steady is the operating principle at altitude. Guides pace each day for the group, and afternoons at camp are for genuine rest rather than pushing further. Regular drink breaks (roughly every 45 minutes to an hour) keep hydration on track, and hydrolyte or electrolyte supplements help replace the salt and sugar you lose while hiking.
Communication — if you feel unwell at any point (headache, nausea, dizziness, or anything else that doesn't feel right), tell your guide immediately. All our guides are trained in wellness first aid and carry an extensive first aid kit, and early communication gives them the best chance to assess and act.
Acclimatisation — our itineraries are built around the principle of hiking higher during the day and sleeping lower at night, with dedicated acclimatisation days built in at key points along the route (Namche Bazaar and Dingboche, for example, on the Everest Base Camp route). This structure — rather than any single tablet or trick — is the main defence against altitude illness.
Hiking Techniques
Your guide sets a pace intended to suit the whole group, adjusting for terrain as the day unfolds — relaxed on flat sections, slower and steadier on climbs. A good personal check: if you can hold a conversation with a fellow trekker, you're likely at a sustainable pace for you. Try not to compare your pace to others, particularly early in a trip at altitude — everyone acclimatises differently.
On climbs, breaking the ascent into manageable chunks (say, 30–45 minutes, then a short break) makes a long climb feel far more achievable than treating it as one continuous push. Groups tend to stay close together on the way up.
Downhill sections deserve just as much care as climbs — this is where most slips and falls happen. Trekking poles, a heel-first-then-toe footfall, and simply not rushing all help. If your footing feels unsteady at any point, ask your guide for assistance rather than pushing through alone.
Terrain
Trails across Nepal typically mix compacted dirt with loose rocks underfoot, which creates genuine tripping hazards — sticking to flat, stable ground where you can is worth the small detour.
The Himalaya's famous swinging bridges are a highlight for most trekkers, and modern ones use strong steel cable. Walk in the centre, avoid excessive wobbling, and be mindful of oncoming traffic — mule trains, yak trains, or other trekkers — before starting across.
Snow and ice sections can be slippery underfoot. Some higher-pass routes may recommend micro-spikes, though standard treks such as Everest Base Camp or the Amadablam trek generally don't require them in most seasons — your guide will advise based on current trail conditions. In low-visibility conditions, stay within earshot of your group and take extra care with foot placement.
Enjoy the Mountains
It's easy to spend a whole day looking at your feet — but make a point of looking up. Villages, monasteries, wildlife, and the people you meet along the way are as much a part of the trek as the summits and passes. Take the photos, chat with your guides and porters, and let yourself actually be in the place rather than just moving through it.
The Himalaya is the kind of place people come back to again and again — whether this trek is a bucket-list goal or your first serious hike, our team is there to help make it happen, and to help you get back for the next one.
FAQs
What trip grade should I choose for my first Himalayan altitude trek? For a first Himalaya altitude trek, a category 5 trip is a solid entry point, particularly if you're managing age-related joint issues or other pre-existing conditions. Contact our team with your fitness background and we'll match you to the right trip and grade.
How do I avoid altitude sickness? Our itineraries are built around hiking higher during the day and sleeping lower at night, with dedicated acclimatisation days built into the route. This structured pacing — not a single tablet or trick — is the main defence against altitude illness.
What should I do if I feel unwell on the trail? Tell your guide as early as possible — even mild symptoms like a headache or nausea. All our guides are trained in wellness first aid and carry an extensive first aid kit, and early communication gives them the best chance to help.
How many guides travel with a group? Ratios vary by trip, but groups typically have a lead guide plus a supporting team, generally in the range of one guide to every four to six trekkers, alongside porters and cook crew.
What happens if my Lukla flight is delayed or cancelled? Weather-related delays are common on the Kathmandu–Lukla route. Our team manages rebooking and getting the group moving again, including via Ramechap or helicopter where needed. If delays extend beyond your booked dates, contact your travel insurer directly.
Do I need to bring my own snacks? Some snacks (such as biscuits) are provided, but most trekkers bring their own preferred mix of sweet, salty, and protein-rich snacks from home, and can also buy extra along the trail.
How much cash should I bring per day? Around US$10–15 a day covers extras like bakery treats or drinks at tea houses, separate from your tipping budget — check your pre-departure information for tipping guidance.
What's the toilet situation like on trek? Our Eco-Comfort campsites mostly have western-style sit-down toilets. Some lodges along the way use squat/drop toilets instead. Packing your own toilet paper and hand sanitiser is a good idea either way.
Are showers available on trek? Some Eco-Comfort campsites and lodges offer solar-heated showers, sometimes at an extra cost, though availability depends on the day's sun and altitude. Many trekkers choose to hold off on showering until descending, to avoid getting cold at higher altitude.
Can I charge my phone or camera on the trail? Solar charging is increasingly available at tea houses in the Everest region, usually for a small fee, but availability depends on recent sunshine. We'd still recommend carrying a 10,000–20,000mAh power bank as a reliable backup.
Should I tip in US dollars or local currency? Local currency (Nepali rupee) is generally the easiest option, since it's ready for local staff to use immediately without needing to exchange it.
Is there an age limit for trekking in the Himalaya? There's no blanket age cutoff for most standard treks — it comes down to your fitness, experience, and any pre-existing conditions. Mountaineering expeditions are assessed case-by-case for trekkers over 60; get in touch and we'll talk through the right trip for you.
Can children trek to Everest Base Camp? Policies vary depending on age and altitude. Contact our reservations team with your children's ages and we can advise on what's achievable for your family.
Do I need to disclose pre-existing medical conditions? Yes — even something like a tendency toward nosebleeds is worth flagging in advance so our guides can plan around it and manage it appropriately if it comes up on the trail.
When is the trail busiest, and when is it quietest? September to November (autumn) is the busiest season, thanks to the best all-round weather. December offers a quieter trail with colder nights but still generally clear days, as trekker numbers drop off from the autumn peak.
Can I hire trekking or mountaineering gear in Kathmandu? Yes — Kathmandu has shops from major outdoor brands as well as rental options, useful for last-minute purchases or specialist mountaineering gear you'd rather not fly with.
Have a question we haven't covered? Contact our trekking experts and we'll talk you through your options.