Answer: ecotourist

AnswerCrossword Clue
ECOTOURISTTraveler to an environmentally protected area
ECOTOURISTVacationing naturist, perhaps
ECOTOURISTTraveler who tries not to make much of an impact?
ecotourista tourist who visits areas of ecological interest (typically exotic and often threatened natural environments), esp to help conservation efforts and observe wildlife