This circuit is considered one of the best treks in the world though road construction is threatening its reputation and its future as a classic trek. Yet no one disputes that the scenery is outstanding: 17 to 21 days long, this trek takes you through distinct regional scenery of rivers, flora, fauna and above all - mountains.
There are four regions that are passed through on the trek; Lamjung, Manang, Mustang and Myagdi. Lamjung and Myagdi of the lower elevations are both predominantly Hindu and with lush green subtropical valleys with villages and terraced farming.
Manang and Mustang are of the higher elevations and are predominantly Tibetan Buddhist. The Manang people are Gurung (not Tibetan descent) and are very proud of their unique cultural heritage and merging of lower land Gurung and Tibetan cultural influences. People of Mustang identify themselves a lot closer with Tibet and the Mustang region has actually been part of Tibet in history. Mustang also is one of the last places in the world to view the ancient Bonpo Religion in action. Villages to note for Bonpo are Thini and Lupra near Jomsom, and Nargon near Kobang.
The trek goes counter-clockwise from Besisahar to Nayapul and reaches its summit in Thorung La (pass) at the height of 5416 m (17,769 feet). The route goes past the following mountains: Manaslu (an over-8,000-meter peak), Langtang Himal, Annapurna II and IV, Annapurna III and Gangapurna, and, of course, Annapurna I and Dhaulagiri -- passing through the world's deepest gorge in between those two over-8,000-m peaks. Poon Hill, at the end of the trek, affords views of those two mountains, and of South Annapurna and Machapuchare, the "Fishtail Mountain."
The trek also goes through Buddhist villages and Hindu holy sites, most notably the village of Muktinath, a holy site for both Buddhists and Hindus, and Braga, one of the oldest monasteries in the region.
From Dharapani to Kagbeni you will be walking the Annapurna section of The Great Himalaya Trail, a long distance trekking route that connects Nepal from East to West.
The eastern portion of the trek follows the Marsyangdi River upstream, to its source near the village of Manang. To get there several days of up-hill hiking are required. Then the route goes over the pass, a grueling day of hiking, and back down the other side, where it meets up with the Kali Gandaki River. At the end of the trek, several options are available: following the river further to the road proper to Beni and catching a bus to Pokhara, or adding on a trek to the Annapurna Base Camp (ABC Trek), aka the Annapurna Sanctuary Trek. A relatively new option is to ride down by mountainbike from Muktinath or Jomsom, turning road construction in a positive thing for tourism. Mustang is on its way to becoming a major downhill biking destination, thanks to its beautiful scenery and the fact that one descends from 4000 m to 1200 m altitude along this jeep road or single tracking it on alternative walking trails.
This is a "teahouse trek," meaning there are villages with lodges and restaurants to eat and stay in along the entire route. You are expected to eat dinner and breakfast in the same lodge where you are spending the night. Prices of rooms are seemingly inexpensive because of this (NPR100 to NPR300 for a double) - lodge owners tend to make more money on the food and drinks they are selling you than on the room where you are sleeping.
Before you go, check on the status of the road being built on the eastern portion of the trek from Besisahar to Chame. In the winter of 2009, construction of the road interfered with trekking, with some parts being dangerous to navigate. Locals tend to talk up the road and downplay its negative aspects. Road walks in Nepal are very unpleasant, and unhealthy, due to the large amounts of powdery dust that tend to be kicked up from passing jeeps and buses.
Be prepared for all manner of bathrooms. Sometimes you'll get a modern flush toilet with private access, other times you'll have to venture out in the cold to use a smelly squat toilet. Even so, all lodges have running water. However, it may not always be hot water. Typically, a solar shower will give you a luke warm 'power shower' if it's been a sunny day, otherwise the thing to ask is if the water pipes run through the fire in the dining room or kitchen, as once the fire is going you'll be steaming with the best of them!
Bring along a sufficient amount of money for the entire trek, though you can use cash traveler's checks or exchange US dollars in Jomsom or Chame. There are no ATMs on the trek after Beshisahar (except for an unreliable ATM in Jomsom). A day on the lower villages of the trek can cost as little as Rs 700 (food and accommodation only). A day in the higher points of the trail can cost Rs 1200. You can do the trek for about USD13 a day if you go independently.
Budget for Rs 1000 per day if you are a very modest spending trekker, though those on a budget can get by with less and people who want to live it up a little should allow for more. Despite the efforts of ACAP there could be variations in pricing that will surprise. For some reason the region between Tal and Chame is more expensive than from Chame to Manang which is at more difficult to access! As the prices seem to be fairly set throughout each village though do not concern yourself with hunting around a village looking for a cheaper place and try not to stop at the first lodge you see so that trekkers are spread through the village. Quite often the nicest lodges are on the way out of town.
Though not required, porters and/or guides can be easily hired in Pokhara or Kathmandu at many travel agencies. As a classic "tea-house trek," which goes from village to village and does not require trekkers to bring along food or camping equipment, porters and guides are not necessary, though many trekkers still like to use them.
You can try and walk the lower stages at a faster pace maybe combining two of them into one so that more time can be spent on acclimatization on the higher stages. For example a couple of extra days can be spent at Manang and utilized by climbing to one of the many peaks around it and coming back down so as to increase the production of red blood cells. You can also see the origin of the Marsyangdi river in Manang. Taking the high trail from Pisang via Ghyaru and Ngawal, and sleeping in either of those villages also helps acclimatization. As those villages are already higher in elevation than Manang, the extra acclimatization day in Manang can be skipped. The best part about this trek is the varied scenery it has to offer. You start from tropical forest in Besisahar, see terminal moraine near Manang and then move past the snow line across the Thorung La and then to the barren landscape of lower Mustang and Muktinath.
It is possible to bike from Muktinath to Tatopani. With bike rental available in Muktinath. Mustang Mountainbikes is a shop that has been there since 2011. They have good bikes and give all necessary information about mountainbiking on the road and alternative trails. For a typical ride from Muktinath to Tatopani, take 2-3 days.
There are guesthouses in all the villages scattered along the trail so set whatever pace you like and enjoy the views. The hike between Besisahar and Bhulbhule is pleasant enough. It is the jungly bit of the hike and provides a nice contrast to the various ecosystems you will be hiking through in the coming days. Therefore taking a bus to Bhulbhule is not recommended. It will likely take you the same amount of time either way as the road is a potholed mess and the buses are slow, uncomfortable and run infrequently.
1 Besisahar (820 m) to Khudi: 7 km, 2.
(note: It can typically be a long journey to get to Besisahar from Kathmandu. If you can arrive at a reasonable time it's worth considering walking directly on to Khudi and stopping there for the night. It'll be more basic but cheaper than the much larger Besisahar, and it will give you a good start the next morning. The first day, usually Besisahar to Bahundanda, can be brutally hot, and ends with a long climb. Knocking a couple of hours off of this and enabling you to spend more time out of the heat of the day isn't a bad thing.)
2 Khudi (790 m) to Bhulbhule: 2 km, 1.00 hrs
Bhulbhule (840 m) to Ngadi: 4 km, 1 hr 15 min
(note: Ngadi has good views of the snow-capped mountains in the early morning)
Ngadi (890 m) to Bahundanda: 4 km, 1 hr 45 min
3 Bahundanda (1310 m) to Ghermu: 5 km, 1 hr 30 min
Ghermu (1130 m) to Jagat: 3 km, 1 hr 30 min
(note: Ghermu sits in an open valley and is therefore a more pleasant place to spend the night than Jagat. Jagat is a dirty, congested village that sits in a narrow chasm.)
4 Jagat (1300 m) to Chamche: 4 km, 1 hr
Chamche (1385 m) to Tal: 5 km, 2 hr
Tal (1700 m) to Karte: 4 km, 1 hr 30 min
Karte (1870 m) to Dharapani: 2 km, 1 hr
(note: Dharapani is a good place to stay with good views up both canyons)
5 Dharapani (1900 m) to Bagarchap: 2 km, 1.00 hrs
Bagarchap (2160 m) to Danaqyu: 2 km, 45 min
Danaqyu (2200 m) to Koto:
(upper trail) Danaqyu to Thanchowk: 6 km, 2 hr 15 min
(upper trail) Thanchowk (2570 m) to Koto: 4 km, 1 hr
(lower trail) Danaqyu to Latamarang: 1.5 km, 1 hr
(lower trail) Latamarang (2400 m) to Koto: 5.5 km, 2 hr
Koto (2640 m) to Chame: 2 km, 45 min
(note: Koto is small, clean and quiet as compared to the hustle and chaos of Chame. In Koto there is also a nice Tibetan Buddhist Monastery and great mountain vistas.)
6 Chame (2710 m) to Bhratang: 7 km, 2 hr
Bhratang (2850 m) to Dhukur Pokhari: 6 km, 1 hr 30 min
Dhukur Pokhari (3240 m) to Humde:
(note: there is a trail between Lower and Upper Pisang. Upper Pisang has quaint old-school lodging and an active Tibetan Buddhist Monastery worth visiting for the Sunset and Sunrise chants. Furthermore, the villages along the upper trail are full of character and the views along the trail are perhaps the best of the whole circuit.)
(upper trail) Dhukur Pokhari to Upper Pisang: 1.5 km, 1 hr 30 min
(upper trail) Upper Pisang (3310 m) to Ghyaru: 4.5 km, 1 hr 45 min
(upper trail) Ghyaru (3730 m) to Ngawal: 5 km, 1 hr 45 min
(upper trail) Ngawal (3680 m) to Humde: 2 km, 45 min
(lower trail) Dhukur Pokhari to Lower Pisang: 6 km, 1 hr
(lower trail) 7 Lower Pisang (3250 m) to Humde: 7 km, 2 hr
Humde (3330 m) to Bhraga: 6 km, 1 hr 45 min
Bhraga (3450 m) to Manang: 2 km, 30 min
(note: Manang is a pleasant enough place to spend a rest day. It is clean and has a couple of “movie houses” with good DVD collections. There are many day trips one can take here. A map of times, distances, and locations is next to the central stupa. If you have the time, an excellent side trip is the hike to Tilicho Lake from Manang, returning to the main trail at Yak Karkha. This could take up to 3 days. As the lake is at 4900 m, it's good for acclimatization and is a worthwhile spot to visit briefly.)
8 Manang (3540 m) to Yak Kharka: 9 km, 3 hr
Yak Kharka (4050 m) to Letdar: 1 km, 1 hr
Ledar (4200 m) to Thorung Phedi: 5 km, 2 hr 30 min
Thorung Phedi (4450 m) to High Camp: 1 km, 45 min
(note: High Camp at 4900 m has loads of beds and great views of the surrounding mountains.)
High Camp (4850 m) to Thorung Pass: 5 km, 2 hr 15 min
Thorung Pass (5416 m) to Charabu: 6 km, 2 hr 45 min
Charabu (4230 m) to Muktinath: 4 km, 1 hr 15 min
9 Muktinath (3800 m) to Kagbeni:
(note: When you arrive in Muktinath, you are back to civilization. The trail is hiking a dusty road until Gharkhola where the two separate. From this point forward expect to be stepping off the road frequently to allow trucks pass. For Rs 200 you can catch a truck from Muktinath to Jomsom. (2014: jeep costs Rs 710). Or make use of the road in the most adventurous way: bike it down! Muktinath has some decent accommodation and food after your 1700-m descent from the Thorung La and also has Hindu and Buddhist temples that you can visit. You can also stay down the road in Jharkot or on the other side of the valley in the very inexpensive and charming hamlets of Purang and Jhong.)
(high trail) Muktinath to Jhong: 3 km, 1 hr 30 min
(high trail) Jhong (3540 m) to Kagbeni: 6 km, 45 hr 45 min
(low trail) Muktinath to Jharkot: 1 km, 1 hrs (note: 1 hour is possibly longer than you would expect to take; the road is well worn and mainly on a fairly gentle down hill)
(low trail) Jharkot (3550 m) to Khinga: 3 km, 45 min
(low trail) Khinga (3355 m) to Kagbeni: 6 km, 1 hr 45 min
(note: Kagbeni is an amazing little town with hidden alleyways and European like charm. It is easily a place to spend a couple of nights.)
Kagbeni (2800 m) to Eklebhatti: 2 km, 1 hr
(note: The hike into gale like winds along the dusty road from Kagbeni to Jomsom with jeeps and motorbikes hurtling by at high speed is... not enjoyable. Take a jeep instead.)
Eklebhatti (2740 m) to Jomsom: 7 km, 2 hr (but seems longer)
(note: hiking into Jomsom feels like hiking into a ghost town and will leave you with an uneasy feeling that you won’t find a place to stay. Keep walking. All the guesthouses are on the other side of the town by the airport. It will take about 15 minutes to get through town to where the guesthouses are. From Jomsom you can either take a 20-minute flight back to Pokhara for about USD100 or bus it for ~USD20 on a multi-stage all-day affair that will get you back to Pokhara after dark.
Bus: Jomsom to Ghasa; change buses; Ghasa to Baglung (or get off at Gharkhola); change bus; Baglung to Pokhara.). Or take a mountain bike to Tatopani.
Jomsom (2720 m) to Marpha: 6 km, 1 hr 30 min
10 Marpha (2670 m) to Tukuche: 6 km, 1.30 hrs
Tukuche (2590 m) to Kobang: 4 km, 1 hr
Kobang (2640 m) to Larjung: 1 km, 1 hr
Larjung (2550 m) to Kokhethanti: 3 km, 1 hr
Kokhethanti (2525 m) to Kalopani/Lete: 3 km, 1 hr
11 Kalopani/Lete (2535 m) to Ghasa: 7 km, 3 hr
Ghasa (2010 m) to Kopochepani: 4 km, 1 hr 30 min (note: the road as of 2009 had made it up as far as Jomson, and this route can be used to walk down. The road route is a wide, fairly level route that will get you a good distance quickly, however, you will have to contend with the dust thrown up by the 4x4s and the lack of scenery. A route off to the left takes you on a steep incline away from the road and back onto a proper path. This way is much harder, but much more fulfilling)
Kopochepani (1480 m) to Rupsechhahara: 2 km, 45 min
Rupsechhahara (1500 m) to Dana: 3 km, 1 hr
Dana (1400 m) to Tatopani: 4 km, 1 hr 30 min
12 Tatopani (1200 m) to Ghara: 5 km, 2.15 hrs
Ghara (1700 m) to Sikha: 6 km, 1 hr
Sikha (1935 m) to Chitre: 1 km, 1.45 hrs
Chitre (2350 m) to Poon Hill: 2 km, 1 hr 15 min
Poon Hill (3200 m) to Ghorepani: 3 km, 3 hr (note. The walk up Poon Hill in the morning can get very crowded. Rather than head up there, head up the hill the other side (as if heading to Chomrong). You'll have a better view and you'll have it to yourself.) (note. Continuing on the path mentioned in the note above, will take you along a ridge, and across a valley to the village of Chomrong, two days into the Annapurna Base Camp trek ) Ghorepani (which literally translates to "Horsewater") is a small place which also serves as a base to trek up to Poon Hill and as a campground for those continuing on one of the other treks ] in the region. The trail to Ghorepani, and to other nearby trekking destinations, starts and ends in Pokhara and is considered to be an easy expedition. The trek route to Ghorepani is usually closed from July to mid-September due to the monsoon season.
13 Ghorepani (2870 m) to Ulleri: 2 km, 1.00 hrs
Ulleri (2010 m) to Tikhedhunga: 2 km, 1 hr
Tikhedhunga (1500 m) to Birethanti: 6 km, 2 hr
Birethanti (1025 m) to Nayapul (1070 m): 1 km, 30 min
Naar-Pho Valley was opened to foreigners in 2002 and only a comparatively few tourists have visited the area so far. The area has a totally Tibetan character and the two main villages 1 Phugaon and 2 Naar are both located at over 4000 m altitude. A trekking permit is needed for this restricted area, and it must be arranged through a trekking agency. It is also compulsory to have a guide, and as there is not much tourism infrastructure to speak of, most groups visiting the area choose an old style camping trek with porters, cooks etc. Entrance to Naar-Pho is from Koto (before Chame) and exit is via Kang La pass 5300 m to Ngawal. A side trip to Naar-Pho requires 9 days if two nights are spent in both Phugaon and Naar. As hiking from Koto to Ngawal takes normally 2 days along the AC, a side trip to Naar-Pho adds about 7 days to the total trekking time.
The 1 Tilicho Lake is one of the highest lakes in the world at 4920 m and requires 2-3 days from Manang. Walk 3 hr to Khangsar, some maps will show a path along the south side of the valley, but this path is old, unused and wrecked by landslides, stick to the northern side.
You may be confused by people referring to the upper and lower path... there are actually three different paths. Two paths leave Khangsar, the lower one is (more) landslide prone and has no teahouses, use the upper one. About 45min after Shree Kharka the path splits - the path upwards involves a lot more climbing and descending and is unsafe (the signpost to it is crossed out and has "Danger" scratched on it) - take the path downwards. Some people refer to this downwards path as the "lower path", causing confusion with the "even lower" path. Be aware that the path recommended above is marked as only a minor trail on some maps.
Out of Khangsar take the upper path 40 minutes to a monastery and a further 20 minutes to Shree Kharka, with two tea houses where you can have lunch or spend the night. There is another teahouse about 20 minutes after Shree Kharka.
Three hours on from Shree Kharka you will reach Tilicho Base Camp, with three teahouses and another under construction.
The lake is reached by walking three hours up from the Tilicho Base Camp at approximately 4100 m. It's a tough, steep, consistent climb and will be by far the highest you've been at this point in your trek. Snow leopards are around in this area but you are more likely to see blue sheep and yaks. It's possible to reach base camp and climb to the lake in one day from Shree Kharka but it's best to stay overnight at base camp, then head up very early in the morning to get the best weather - it gets very windy after 11:00 and the clouds can start forming as early as 08:00. Being at the lake can be very cold - be sure to bring warm clothes. There is a teahouse there where you can get food and tea, but no accommodation except in an emergency. The teahouse may not open in low season, the staff come up from base camp each day, so check there before heading up.
It takes 1½ hours to get back to base camp. Once down you could stay the night, or continue 3 hr back to Shree Kharka (or 2 hr 45 min back to just before Shree Kharka). The next day it is possible to walk directly to Yak Kharka via Old Khangasar so you do not have to backtrack all the way to Manang, there is a clear signpost at a split in the path just after Shree Karka. It takes approximately 4hrs to get from Shree Kharka to Yak Kharka.
Depending on where you end your trek, buses and taxis are available to take you to Pokhara, a great place on a lake to spend a few days unwinding and relaxing. Kathmandu is about a six hour bus ride from Pokhara, easily arranged once you're ready to leave the lakeside town.
For more information on preparing for this trek, including when to go, what to bring, what permits are required, and safety precautions including altitude sickness, and water contamination, see Trekking in Nepal.