A general advise to trekkers is to leave only footprints and take photographs. However, the recent developments along trekking trails have been of concern to environmentalists and locals alike. The sprouting of teahouses along trekking trails demands 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:

1. Ensure that your trekking company supplies sufficient kerosene or gas for cooking.

2. Dispose biodegradable wase properly and carry non biodegradable waste out or dump them in properly constructed waste pit.

3. Ensure that campsites are left clean and that toilet pits are properly filled in after use.