It's a great trek, laya Gasa Trek, Bhutan. We were in Bhutan for 17 days, with excellent preparation for altitude acclimatization planned by Third Rock Adventures. Naba helped us for preparation and assisting every time we needed him. Our Bhutanese guide was friendly, local expert and attentive. He was very careful to ensure our safety. The scenery and experiences were amazing and unforgettable. I have no hesitation to recommend Third Rock Adventures for Bhutan Trip.