|Bikini Bottom Triangle|
|Appearance:||"Welcome to the Bikini Bottom Triangle"|
|List of places|
The Bikini Bottom Triangle is an island that was seen in the episode, "Welcome to the Bikini Bottom Triangle." The Mermaids were the first people to settle there. The island contains lots of items taken by the mermaids via singing to activate a giant vacuum, which opens a rift in the sky while doing so. When they sing their song backwards, the items are returned to their owner.
- The Bikini Bottom Triangle is possibly a reference to the Bermuda Triangle.