Per the name, you'll find this cache hangin' out by the Seaport in Fairhaven. You're looking for a typical camo bison tube.
The coordinates for this cache were discreetly released during the nearby SEMAG event, and anyone who signed the log on March 24 did so pre-publication. The first person to find the cache and sign the log after official publication may claim FTF if you choose to do so.