Whitecap Bay is a large cove on a mysterious island. Doom awaited any misguided mariner who sought out these perilous waters, as mermaids have been known to gather at Whitecap Bay for hundreds of years, thereby striking terror in the hearts of all sailors and pirates.
Myths tell of mermaids lurking beneath the pale, foaming breakers, but few know that these briny beauties were actually flesh-eating creatures. The remote lighthouse at Whitecap Bay served as a beacon, as man-made light could attract these sirens of the sea. Whitecap Bay was visited most notably during the quest for the Fountain of Youth, where Blackbeard and his crew, during their mermaid hunt, found themselves surrounded by vengeful foes consumed with rage against mankind.
Under command by Blackbeard to get tears for the ritual at the Fountain of Youth, it is said that Whitecap Bay is a dangerous area inhabited by mermaids which could drag victims to their doom in a plan to get the tears. Arriving at the spot, mermaids surround Scrum as he sings "My Jolly Sailor Bold" as some mermaids arrive towards the crew. When one of the mermaids Tamara arrives, she and the other mermaids prepare to drown the surviving crew members as the crew noticed that mermaids are a threat to them. Jack then plans on getting an idea to scare off the mermaids by going to the lighthouse, to which he causes an explosion to cause the mermaids to retreat. All retreat, except one named Syrena who is captures during battle. Afterwards, the crew continues proceeding to the Fountain.
- Whitecap Bay was filmed in three locations for On Stranger Tides. The scene where Hector Barbossa and his crew are ashore was filmed in Halona Cove in Oahu, Hawaii. The scene where the mermaid attack against Blackbeard's crew occurred was in a set built at the "Falls Lake" section of Universal Studios in Los Angeles. The exterior of the longboat at Whitecap Bay scene was filmed in the H stage at Pinewood Studios.
- Early in the development process of On Stranger Tides, Whitecap Bay was going to be named Crow's Nest Bay.
- Other than Whitecap Bay, mermaids also lived in Isla Sirena.