This The Last of Us 2 Walkthrough for Chapter 7: Seattle Day 2 – Return to the Aquarium is straightforward because it is mostly story-based. There are 0 collectibles in this section.
Return to the Aquarium Walkthrough
You and Owen are together in the aquarium during a cutscene, kicking off this section. You’ll see Yara and then it will cut.
Walk forward towards the door ahead.
Source: IGN.com The Last of Us 2 Walkthrough Chapter 7: Seattle Day 2 – Return to the Aquarium