Sit in silence for one minute and listen for as many different bird tweets, chirps, whistles or songs as you can.
What's the number on this train?
Run round and round anything round you can find, including Saturn and its rings.
Name this allotment.
Discover a National Cycle Network route in the United Kingdom.
Answer the question below to unlock the points.
Identify a problem that faces young people in your area: homelessness, kids without school supplies, lack of playgrounds or another issue.
Look out! What dangers can you see?
Find a view that looks natural but sounds unnatural. Close your eyes and imagine the view that matches the sound, then put your fingers in your ears and imagine the sounds that match the view.
Locate this Bronze Age family and look at the landscape through their eyes.
Draw what you think this view would have looked like 100 year ago and 100 years into the future.
... of your favourite place to walk. Take a picture of your favourite bit of the path.
Write a word, poem, letter or story for someone you like by photographing only natural things.
Find someone on the other side of the planet to finish off an Earth Sandwich by clicking here.
Where is (un)friendly in your local area? Create a map to show where the friendliest places are.