Due to the increased number of travelers, a group can usually expect to get some savings on air tickets, accommodations, meals, and tours. (travelinsurancereview.net)
On a similar note, a higher number of travelers on the highways cause more traffic accidents. (citrusinjuryattorney.com)
With the large numbers of travelers wanting to trek and visit hill tribe villages they are the number 1 source of water pollution in remote areas. (all-thailand-exp.com)