Trekking Trail Nepal provided us (myself and 2 new friends) the best Upper Mustang Trek of 12-day adventure through the Upper Mustang region. As a small group of 3 trekkers they were really flexible in catering to our wants our all needs with flexibility with care and adventure. Our guide Apar for Upper Mustang Trekking was fun bubbly and always ready to make us laugh with care. We had the greatest time dancing in the Nepalese Upper Mustang desert mountains. This was definitely a once in a lifetime trip, truly unforgettable; The Best Upper Mustang Trek.