Here are the possible solutions for traveler to an environmentally protected area clue
Answer
Clue
Relevancy
ecotourist
Clue
Traveler to an environmentally protected area
Definition
a tourist who visits areas of ecological interest (typically exotic and often threatened natural environments), esp. to help conservation efforts and observe wildlife
ecotours
Clue
Trips to environmentally protected areas
Definition
ECOTOUR, to go on a tour with an ecological purpose
airspace
Clue
Area protected by military planes
Definition
the portion of atmosphere above a certain land area