In terms of popularity, Lantang is the third most visited trekking trail in Nepal after Annapurna and Everest. Langtang is the nearest trekking trail from Kathmandu lying just 120km towards north along Nepal-China (Tibet) border.
Langtang is home to the Langtang range which includes Langtang Lirung, Yala peak, Naya Kanga, and Pangsang among many others. The view of Shishapangma peak of Tibet is also visible from here so is Langtang glacier, one of the biggest Himalayan glaciers in the Himalaya. Kyangin Gompa at 3850m, Kyanjin Ri (4350m), Laure Binayak pass (4600m), Gosainkunda Lake, Langtang Village, are some vantage points worth visiting.
Of late a new route called Tamang Heritage Trail has been opened in Rasuwa district which offers great cultural heritage of Tamang ethnic group. This Tamang group of Rasuwa shares their culture and customs with their Tibetan cousins. Gatlang, Goljung, Thuman, Briddim are beautiful villages you can explore along with an excursion of Rasuwagadhi, the border point of Nepal and China (Tibet).
Langtang National Park, the second oldest national park in Nepal, is a major attraction of Langtang trekking. Full of wildlife activity, the park is a residence of red panda, snow leopard, wild boar and Himalayan black bear. The region is dominated by Tamang and Tibetan people who have a direct link with Tibet and follow Tibetan Buddhism.
Two best seasons for Langtang trekking are Spring (Mar-May) and Autumn (Sep-Nov) when the views are crystal clear and the weather is warm and not too cold. Public and private vehicles are easily available that connect Kathmandu with Dhunche/Syabrubesi, the starting point of Langtang trek.