The Gokyo lake chain, Ngozumpa (Nepal’s longest glacier) and the Gokyo Ri summit view of four 8,000ers

The line through Khumbu (Sagarmatha NP), Nepal - waypoints, elevation and the day-by-day shape of the walk.
Fly-in; start of the Khumbu
Acclimatization hub
Gokyo valley turn-off from the EBC trail
Altitude checkpost
On the third lake; base for Gokyo Ri
Steep viewpoint climb; turn-around high point
Oct-Nov and Mar-May
Clear cold mornings clouding by afternoon; heavy monsoon rain and leeches Jun-Aug; winter snow blocks the high passes; Lukla flights are weather-dependent and often delayed
Turquoise lakes brightest in autumn; big Everest/Cho Oyu/Makalu panorama from Gokyo Ri
Best Oct-Nov and Mar-May; winter is cold with snow, monsoon cloudy. Confirm.
Sherpa villages, pine/juniper, the Dudh Kosi valley, then the Ngozumpa Glacier moraine and lake basins
Non-technical; no ropes/glacier on the standard route; steep Gokyo Ri push
Well-lodged Khumbu trail; guide required (national rule)
Fit, acclimatized trekkers; a quieter, scenic alternative to EBC
Langur monkey, Himalayan tahr, danphe (Impeyan pheasant), musk deer; snow leopard/blue sheep in the high remote zones (rarely seen)
Rhododendron and oak/pine forest lower, then juniper scrub and alpine meadow, then rock and snow
Quieter than the EBC trail - a key attraction
Fifth Lake / Ngozumpa Glacier viewpoints; cross the Cho La to link with EBC; turn around at Gokyo village
Fly Kathmandu/Ramechhap to Lukla (weather-dependent), then trek via Namche and Dole
Lukla flights (seasonal Ramechhap staging); helicopter charters as backup
Teahouse lodges (private rooms lower down, dorms higher); book ahead in peak season; hot showers/wifi for a fee lower down, basic higher; fewer lodges at Gokyo - book in peak
Layered trekking kit, down jacket and warm bag for the highs, boots, water purification, cash in NPR (few ATMs on trail); patchy mobile data (Ncell/NTC), some lodges sell wifi
Lodges, bakeries and shops via Namche; Gokyo is small; carry cash
Licensed guide required for foreign trekkers (national rule since 2023); porters optional; teahouse trek so no camping crew needed
Sagarmatha NP entry fee (NPR 3,000) + Khumbu Pasang Lhamu Rural Municipality fee (NPR 2,000-3,000) paid at Lukla/Monjo; no TIMS in Khumbu; national licensed-guide rule applies (Khumbu enforcement has varied - confirm).
Permits and operators change - confirm before booking.
Altitude illness (AMS) is the main danger above ~3,000 m - ascend gradually, hydrate, know the descent rule (sleeping ~4,700-5,000 m); Lukla flight uncertainty; cold
Helicopter evacuation is the norm for serious cases (ensure travel insurance covers heli rescue); health posts at larger villages; descend for altitude illness; helicopter evac common from the Khumbu
This profile is desk research, compiled from public sources - not a first-hand trail report. Coordinates are approximate.