Walk in the Park

Walk in the Park is a main quest in the Fallout 4 add-on Far Harbor.

Synopsis
In order to find Kasumi, the Sole Survivor is directed to Acadia, a synth refuge on the Island. However, to get there, they will need a guide: Old Longfellow.

Walkthrough

 * 1) Talk to the welcome party at the dock: Avery and Allen Lee.
 * 2) The Mariner will run in and interrupt, reporting that a wave of monsters is coming in from the fog.
 * 3) Follow Avery to the hull. Monsters come in three increasingly difficult waves and attack the survivors on the ground first.
 * 4) Optional: Saving Jared Gresham will result in a reward from him.
 * 5) Once the attacks are repulsed (falling off is harmless, except for all the monsters), talk to Avery and Lee. They will direct you to Old Longfellow.
 * 6) Talk to him at The Last Plank. Use either persuasion, Nick Valentine, or buy him a bottle of whiskey to make him pliable.
 * 7) Follow him to Acadia and take in the sights - and advice.
 * 8) Upon arrival, talk to Longfellow.