Here There Be Monsters

Here There Be Monsters is a quest in Fallout 4.

Quick walkthrough

 * 1) Go to The Shamrock Taphouse and talk to Donny Kowalski around the rear of the building, next to the ocean.
 * 2) Just out into the ocean is the Yangtze submarine. Investigate the submarine.
 * 3) Talk to Captain Zao.
 * 4) Get the dampening rods.