Gullet
From A Wiki of Ice and Fire
The Gullet is the stretch of water in the Crownlands between Dragonstone and Driftmark to the north and Massey's Hook to the south. Blackwater Bay opens into the Gullet, which connects with the narrow sea.[1]
History
During the Dance of the Dragons, the Gullet was blockaded by the fleet of the Sea Snake, Lord Corlys Velaryon. The greens broke the blacks' naval superiority with the Battle in the Gullet, however.[2]
Recent Events
A Clash of Kings
Stannis Baratheon's fleet is scattered by a storm in the Gullet on its way from Storm's End to King's Landing.[3]