I can't recommend Third Rock Adventures enough. From the start it was wonderful. They were very prompt in all their responses and gave us lots of information and choices to help us make our decision about where to trek. We ultimately decided on the Manaslu trek. Our guide for the trek was professional and personable. We are pretty fit hikers and after assessing our abilities he quickly adjusted the itinerary to meet our needs. We enjoyed every minute of his companionship. The trek itself is an amazing adventure. We absolutely loved the trek.