Tourism is the act of travel for the purpose of recreation and business, and the provision of services for this act. Tourists are people who are "travelling to and staying in places outside their usual environment for not more than one consecutive year for leisure, business and other purposes not related to the exercise of an activity remunerated from within the place visited" (official UNWTO definition). The distance between these two places is of no significance.
A more comprehensive definition would be that tourism is a service industry, comprising a number of tangible and intangible components. The tangible elements include transport systems — air, rail, road, water and now, space; hospitality services — accommodation, foods and beverages, tours, souvenirs; and related services such as banking, insurance and safety and security. The intangible elements include: rest and relaxation, culture, escape, adventure, new and different experiences.
Kathmandu Environmental Education Project - A non governmental organization promoting minimum impact trekking, to minimize environmental damage caused by eco-tourism. Contains a mission statement, news, history, programs, photo gallery and a travel guide.
The Himalayan Explorers Club - Provides information and specialized services for trekkers in Nepal. Contains a profile, news, services overview, publications, FAQs and links to other sites of interest.
Meta Description: [ The Himalayan Explorers Club (HEC) is a 501(c)(3) nonprofit organization that seeks to promote a better understanding of and respect for the environment and culture of the Himalayan Region. ]
Treknepal.org - Charity offering interactive CD-based guide to trekking in Nepal. Offers around 1000 original images, 14 detailed treks.
Meta Description: [ The Trek Nepal guide to trekking in the Nepal Himalaya offers you a highly visual, CD-based interactive web of trails that cover all Nepal. ]