Nar-Phu and Upper Mustang-Tiji festival
An extended trek is planned incorporating the Nar-Phu Valley, a section of the Annapurna Circuit over Throung La and then to Muktinath where the trek northward to Upper Mustang will begin. Start trek date will be early May beginning at either Besi Sahar, or Koto to cut off a couple days. Pace will be adjusted to arrive in Lo Manthang for the Tiji Festival on May 22-24.
This will be a tea-house trek with the mandatory Guide. Unfortunately it will not be cheap as the trek permits alone run $605 per person.
If this sounds interesting, post a message and I can share more details.