Make-Out Reef is a location on a ledge in Bikini Bottom. It is a place for teenagers to "interact" with each other that appears in the episode "Mermaid Man and Barnacle Boy V."
As stated above, Make-Out Reef is located on a cliff, and appears to have various colors of coral. The reef also has a sign that reads, "Danger Cliff" written in red.
Role in the episode
Sandals can be seen here smooching with a pillow. John and Nancy Suzy Fish are there together as well. Squidward makes a comment about this place which indicates he may have been here in his teen years. Barnacle Boy, the Dirty Bubble, and Man Ray are also seen here, harassing teenagers as part of their villainous schemes.