Beach Break Bay, Family amusement park at Sea World, Gold Coast, Australia

Beach Break Bay is a themed children's area inside Nickelodeon Land at Sea World on the Gold Coast. It occupies land that was filled in from the Sea World Lake for Cartoon Network Cartoon Beach, which opened in October 1999. The area features six operating rides and other attractions, including a show stage that presents Dora's Best Friends Adventure.

Before October 1999 the site was part of the Sea World Lake; it was filled in for Cartoon Network Cartoon Beach, which opened that October with rides such as Air-See Rescue and Dexter's Time Machine. On 29 September 2007 Sesame Street Beach replaced it, adding the Big Bird Bounce tower. In late 2011 the area became Beach Break Bay; a 2015 refurbishment plan was dropped for Nickelodeon Land, which opened in September 2015.

The area's name changed with each retheme: Cartoon Network Cartoon Beach from October 1999, Sesame Street Beach from 29 September 2007, then the generic Beach Break Bay from late 2011. The adjacent show stage hosted Bert and Ernie's Island Holiday under the Sesame Street theme and later Dora's Best Friends Adventure.

Beach Break Bay occupied land filled in on the former Sea World Lake, the same site used by Cartoon Network Cartoon Beach from October 1999 and Sesame Street Beach from 29 September 2007. It was replaced when Nickelodeon Land opened in September 2015, so the area is now visited as part of that Nickelodeon-themed children's zone.

The attraction combined traditional playground equipment with maritime-themed elements to create an entertainment space for younger visitors.