Walk around individually and find a tree that you are drawn to. Lay down underneath it and place a piece of paper on your chest or next to you. Start drawing your tree without looking at the paper. Take turns in looking, sensing, and drawing, looking, sensing, and drawing.  After 10 minutes the group assembles and participants show their drawings and share their experiences.
Repeat once more.

Two together   

Two people walk together in a line without speaking. When the person in front stops and sits down, the second person sits next to the first one. After sitting together for some time and looking, draw what you find remarkable in your view. Only after finishing look at your drawings together.