This chapter of spoiler free The Last of Us 2 guide contains a walkthrough for Winter Visit. This is another flashback - we take control of Abby, who visits Owen at the aquarium.
Visit to The Aquarium
Start by talking to Owen. The man had been intensively preparing for the festive period and had amassed a number of "treasures" in the aquarium. Approach the items - admire the painting on the wall, etc.
Pick up a toy bow to start a small competition - you need to hit a certain number of targets in the given time. The targets are in different places - above the door, to the right of the door, on the railing next to the palm tree, etc. They are quite easy to locate and you can also walk when aiming, so change your position to be closer to them and fire more accurate shots.
After the event, go upstairs with Owen. You are before a short cut-scene starring the duo. After the sequence ends, you go back to the present events.