From YPPedia

The Beta Island monument is located directly northwest of Khatovar.

Full Text

Beta Island was governed swiftly and justly by the venerable Limebeard under the auspices of the flag Green Scurvy Dogs.

It was home to these allied crews:
62 in Yarrrrrr Pirates of the flag "Green Scurvy Dogs"
19 in Mystical Warriors of the flag "Green Scurvy Dogs"