Bitterweed Bay is a large bay of the Shivering Sea located along the northern shore of Essos, east of the Axe and west of the delta of the Sarne. It is known for its deep blue waters, crabs, and numerous sunken ships.
Bitterweed Bay has long been disputed by numerous peoples. The Lorathi refer to it as Bloody Bay, while the Ibbenese call it Battle Bay. The Sealord of Braavos sank the last great fleet of the Kingdom of Sarnor in Bitterweed Bay. There is evidence of historical Ibbenese settlements along the bay.