Agents of Discovery App Hike on Friday, April 6, from 1 – 2:30 pm. If you’re interested in testing this app out or just want to play with a group of other people and learn where else you can play, this program is for you! Download the Agents of Discovery app and bring your device. Free. Location: Albany Pine Bush Discovery Center, 195 New Karner Road, Registration required. Please sign up by calling 518-456-0655.