The Big Year. I'm glad to see him taking an interest in something outdoors. He's got the Audubon Birds app on his Android and he's enjoying adding birds to his new life list.
He got really tickled the other day when we were at Snook Park. He was playing the sounds for a Carolina Chickadee and one came closer and closer until it was in the tree right above us. It kept calling back and forth with the sounds from his app.
geocaching.com and atlasquest.com.