BRING FOCUS ON MODERN TECHNOLOGY 4/5 TO THE LESSON!
Start with a basic video about ecotourism. There are LOTS of them on the internet. Here's one that's nice and short, but if you find a better one, leave me a link in the comments!
Here are some websites that you might find interesting:
Top 10 Australian eco tourism destinations: http://www.apartmenttherapy.com/top-10-australian-ecotourism-d-151991
Ten of the most Eco Friendly Destinations in North America: https://www.salon.com/2016/05/22/10_of_the_most_eco_friendly_destinations_in_north_america_partner/ (with videos!)