Cappy in a Haystack Cappy in a Haystack is a side quest in the " Fallout 4 " add - on " Nuka - World " . Detailed walkthrough . Between The Parlor and Fizztop Grille , Sierra Petrovita is encountered talking to a raider . Intercepting the conversation reveals that she has come to find the reward for finding hidden Cappys throughout the park . Given that the reward was meeting the creator of Nuka - Cola , she figures that his office might contain the original recipe of the drink . She gives her sunglasses along with the holotape Hidden Cappy contest hints to the Sole Survivor to allow them to help her search for the hidden Cappys . Once close to a quest marker it disappears , encouraging a thorough search of the area . The " hidden Cappy " figures are paintings on concrete surfaces in public areas of the park , and there are ten to be found . Without the Cappy glasses equipped , the player sees only a fuzzy Cappy figure with a blurred speech bubble ; with the glasses equipped the code is revealed . Click on the revealed figure to register the code and update the quest . Note that the Cappy glasses do not work when worn under power armor . To see the code , either simply take off the helmet ( one might have to re - equip the cappy glasses even though the box in front of them is ticked off as if they are already equipped ) , or exit the power armor , click on the hidden Cappy , then re - enter power armor . Nuka - Town USA . There is one located west of the Fizztop Grille , on the large wall beside the restrooms building . Safari Adventure . There are two in the Safari Adventure . The first Cappy is through the hedge maze beneath the treehouse , against a wall on the eastern edge . From the entrance , the order of turns is : right , right , left , left , and right . The second is just outside the primate house . Look for the gorilla statue to the right of the door and pass through a patch in the hedge to get to the statue ' s back . Cappy is on the back of the plinth . Dry Rock Gulch . There are two in Dry Rock Gulch . The first is located on the back of a gravestone next to the Giddyup Kid protectron . The second is in Mad Mulligan ' s Mine , on the wall of a little shack beside the waterfall . Galactic Zone . There are two in the Galactic Zone . The first is at the entrance to the dead traders ' camp around the back of Star Control entrance . The sign should be on the left side entrance , right next to the Employees Only sign at the Expert locked gate . The second is up the ramp to the left of the RobCo Battlezone . Turn right immediately at the top of the Spacewalk ramp , and the Cappy is on the right wall near the trash bins . Kiddie Kingdom . There are two in the Kiddie Kingdom . One is in the Fun House in the turntable room , second door on the left when entering from the topsyturvy room or second door on the right when entering from the room with control terminal for The Fun House . The second one is located on the top floor of a destroyed wooden clocktower , just west of the bridge leading to King Cola ' s Castle . World of Refreshment . There is one in World of Refreshment . Inside the plant , following the Nuka - Cola Quantum river , it is on the side of a two - story building across from the Nuka Victory sign in the wild west setting . Going in the opposite direction that was intended for the ride helps the player character spot it easily , it ' ll be on the right hand just after entering the wild west setting from the ' wrong ' direction . Return to Sierra . Return to Sierra Petrovita . Putting the hidden Cappy clues in the right order results in " " REFRESHING " " , as stated by Sierra . Use the keypad to unlock Bradberton ' s office . In the office on the second floor , there is a button on the right hand side of the Nuka - Cola machine . This unlocks an elevator that leads down to a small vault , containing the head of the owner and inventor of Nuka - Cola : John - Caleb Bradberton . Siding with Bradberton . He will request the machine to be shut down to end his torment of being trapped in there for decades . If one chooses to honour his request and to shut off the power , John - Caleb dies and the locked door will open . Behind the door is a Nuka - nuke launcher , Nuka - nuke s , the Nuka - Cola formula as well as various Nuka - Colas , and the key to Bradberton ' s expertly locked vault in his office . The Nuka - Cola formula must be given to Sierra to complete the quest and she rewards 500 caps in return Siding with Sierra . Sierra on the other hand wants to keep him alive , offering that she can keep John - Caleb company to keep from being lonely . She offers the Nuka - World jumpsuit as a reward .