A general advise to trekkers is to leave onlu footprints and take only photographs. However, the recent developments along trekking trails have been of concern to environmentalists and locals alike. The sprouting of teahouses along trekking trails demand wood for construction and fuel, which has led to deforestation. In addition, the amount of waste has increased without proper mechanism for disposal, making some of the popular trails both unsightly and unhealthy. With increased awareness on the part of trekkers and local people, this trend is changing. However, message still needs to be passed across for a more environmentally sound trekking. For vigilant trekking the following rules must be followed:

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