Hello Leonid,
Welcome to Nepal! Both treks are amazing but if you want to do without a guide, then you would have to choose Langtang valley + Gosainkunda out of the two options as this area is not mandatory to hire a guide or porter. You can do this trek independently and it takes about 2 weeks. But if you prefer to go to Manaslu + Tsum Valley, you would need to hire a licensed guide through a registered agency as Manaslu is a restricted area.
Other areas you could go without a guide would be Everest and Annapurna.
If you’d like more info about trekking and tours in Nepal, please feel free to contact us.
Kind regards,
TT4FT team

Namaste,Thank you for choosing a trip in Nepal.both trekking area is so beautiful but Langtang via gosainkund is more beautiful and more open mountain velly,but i suggest to you take one person guide or potter who knows about the place,way,and some English speaking person it will be great,some how who know the natural happen i the mountain.if you want a future more information please fell free to ask any time..lilapoudel09@yahoo.com

Namaste and Tashi Delek Leonid.I am Dawa Tseten Gurung a trekking guide in Nepal. Recently i had trek to Hindhu holy lake called Gosaikunda (गोसाइँकुण्ड), also spelled Gosainkunda and Gosain Kunda is an alpine freshwater oligotrophic lake in Nepal’s Langtang National Park, located at an altitude of 4,380 m (14,370 ft) in the Rasuwa District with a surface of 13.8 ha (34 acres). I had trek there to take a look on trek route. Because of last year earthquake many lodges, guest house and trekking trails were destroyed and still few of the overnight stop lodges are under construction. But almost 95 percent of the route had reconstructed by the local community and the project run by Langtang National Park. All the lodges will be ready to serve accommodation for trekkers by the second week of September. So, feel safe to trek in Langtang, Gusainkunda and Helambu area. To now more about trekking in these area follow me in my facebook and Indtagram.
you can go through link bwlow https://plus.google.com/collection/czg1jB

Hello

pls find information,

“Langtang National Park was the third most popular trekking region in Nepal after the Annapurna and Everest regions. This changed considerably after the devastating earthquake that hit Nepal on the 28th of April 2015.

Langtang Valley is now considered to be ground zero of the earthquake.
Just a few days after the earthquake the already damaged village of Langtang was hit by an enormous landslide and got completely swept away. And just like that, the biggest village of the region ceased to exist.

There’s been a lot of rumors and lies online on the world’s biggest traveling forums and guidebooks, that since the earthquake happened the Valley is closed for trekking.

That’s complete rubbish!!! The Valley is open for trekking!!

The locals that still live in the Valley were almost begging us to tell our friends and other tourists we met that Langtang Valley is 100% open for business.

The locals say that the only way they can continue their life is if tourists come back to Langtang Valley.

We had just return back from a fantastic trek to Langtang valley view. We were four friends trekking to Langtang along with a guide from Nepal Lion Tours and Treks. We had enjoyed the trek with good sceneries of the mountains, Langtang valleys and the landscape of this region. Have an opportunity to know about the different ethnic groups and the culture of the.