Take only photographs and leave only footprints.
This is a collection of Earth Day Outdoor rules (first appeared in the McClatchy Tribune newspaper) that provides tons of tips on how to 'step lightly'. It's not exactly a collection of lesson activities, but this can be used as a great source of ideas, as well as a list of topics for discussion with your Intermediate (and above) group.
Topics included:
- Before you go
- Hiking
- Camping
- Mountain biking
- Horseback riding
- Campsite etiquette
- Campfires
- Wildlife
- Nature's call
- Other stuff