Tom has been leading groups through Nepal for 20 years. This is an excerpt from his website

Trekking in Nepal is an unforgettable experience. To set out hiking into the Himalayas, the highest mountains in the world, is the epitome of adventure travel.

Kathmandu is still, like all of Nepal, deeply connected to its medieval past. The crowded alleyways, markets, and bazaars throng with vendors and shoppers. Throughout Kathmandu countless Hindu and Buddhist temples, shrines and statues are cloaked in incense, vermillion paste and flower petals. Acts of devotion are part of life. Much of Nepali life remains little changed in centuries.

Every trek in Nepal begins in Kathmandu. It is here that a Sherpa guide is hired and the necessary permits and passes are acquired. Most trekking in Nepal involves a plane flight or bus journey to reach the roadhead where the innumerable trails of Nepal begin.

Once walking, the pace of life changes. Motors are left behind. The trails are the roads of the country and are busy with load bearing porters and villagers. If you are on a walking tour in the Annapurna, Langtang or Mount Everest trekking areas you will access high mountain valleys by hiking through the "middle hills" of Nepal. Half of Nepal's twenty million people live on these intensely farmed terraced hillsides. The daily life of an active thriving culture goes on all around you as you walk.