The Changing Tide

 is a side quest in the Fallout 4 add-on Far Harbor.

Synopsis
Captain Avery wants to see the town of Far Harbor prosper, but to do that, either the inhabitants have to get over their egoism or... The Survivor can help.

Walkthrough

 * 1) Simply complete three of the following quests: Hull Breach 3, Turn Back the Fog, The Great Hunt, or The Hold Out.
 * 2) Talk to Captain Avery for your reward.