all the way we enjoyed the beautiful scenery and fresh air. however, a few of us picked flowers while going sightseeing. some even tried to catch the birds they saw. what’s worse/to make things worse, many tourists threw rubbish here and there, which may do harm to wild life.
  of course, i don’t hold the view that this is a true eco—travel. as i know, a real eco-travel is a tour that not only allows us to express our love for nature, but needs our responsibility as well. what’s the most important is that you should take nothing away but your good memory. in addition/besides/furthermore, it is your duty that you are not supposed to leave anything behind but green trees and clean water.
  last but not the least, as we enjoyed the beauty of nature, we must do everything we can to protect our environment. at the same time, making wildlife happy is our main task.