This is earned for finding optional collectible #5. If missed on the first run, you can "Play Episodes" and select specific parts of the Episode in order to find the missing optional photos through
collectibles mode. The following collectible is described and can be seen in the video below at 4:58:
Once you spot on the beach, and Daniel is playing with the dog, pick up the stick at your feet and
Play Fetch, by throwing the stick to the left. The dog should bring back the stick with a collectible attached to it.
Getting all 6 collectibles in this episode will also reward you with the following: