High in the Himalayas, where thin air pervades and rivers run white, is the Dudh Kosi River, a main tributary of the Kosi River system in Nepal. The waterway originates east of the Gokyo Lakes on the southern slopes of Mount Everest before winding down the mountainside, passing scatterings of rural towns on its journey to join the powerful Kosi River near Harkapur.
Most trekkers in the Khumbu region of Nepal encounter the Dudh Kosi River en route to the Everest Base Camp at Sagarmatha National Park, or from above on one of the area's many swinging bridges strung with colorful prayer flags. Nicknamed the 'Relentless River of Everest,' the river system is most notable for its power, as seasonal floods too often wreak destruction on local towns. Due to the river's potential for danger, it is not often used for recreational water sports, although seasonal white water rafting and kayaking trips are sometimes offered.
Hikers should look for guided tours that suit their fitness level and interests. Some tours are geared toward sharing Sherpa culture and enjoying the natural beauty of rural Nepal, while others emphasize physical challenge and extreme adventure. Hiking without a guide in this area is not recommended.Tours in this area are only recommended for those who are physically fit.
Pack high-performance gear; ask for a packing list from your tour provider.
Arrive a few days prior to your excursion to adjust to the altitude.
How to Get to the Dudh Kosi River
Most visitors take a short flight from Kathmandu to Lukla, where they meet up with their guide. Visiting the area without a guide is not recommended due to the extreme nature of the hiking expeditions, although it is possible for those with extensive backcountry experience. Book your guide before embarking on your trip, or save money by booking a guide in Kathmandu — just make sure that whoever you hire is registered with the Trekking Agencies Association of Nepal.
When to Get There
The best time to visit is when the weather is moderate and the chance of rain is slim, generally from March to May and September to November.