sentence: Conservation groups blame people doing the challenge for dropping litter and damaging the landscape.
sentences_before: Recently, the challenge has become more popular. People who live near the mountains often do not like having cars around in the middle of the night.
sentences_after: Some people park their cars in inconsiderate places. Thousands of people attempt the challenge each year. Supporters of the challenge say that only a few people cause these problems, and most behave well.
concept_name: conservation group
headings: Three Peaks Challenge Reasons why some people do not like the challenge
categories: Sports